diff --git a/ethereal/assets/ethereum.js b/ethereal/assets/ethereum.js
deleted file mode 100644
index 8f1a60300..000000000
--- a/ethereal/assets/ethereum.js
+++ /dev/null
@@ -1,236 +0,0 @@
-// Main Ethereum library
-window.eth = {
-	prototype: Object(),
-
-	// Retrieve block
-	//
-	// Either supply a number or a string. Type is determent for the lookup method
-	// string - Retrieves the block by looking up the hash
-	// number - Retrieves the block by looking up the block number
-        getBlock: function(numberOrHash, cb) {
-                var func;
-                if(typeof numberOrHash == "string") {
-                        func =  "getBlockByHash";
-                } else {
-                        func =  "getBlockByNumber";
-                }
-                postData({call: func, args: [numberOrHash]}, cb);
-        },
-
-	// Create transaction
-	//
-	// Transact between two state objects
-	transact: function(sec, recipient, value, gas, gasPrice, data, cb) {
-		postData({call: "transact", args: [sec, recipient, value, gas, gasPrice, data]}, cb);
-	},
-
-	create: function(sec, value, gas, gasPrice, init, body, cb) {
-		postData({call: "create", args: [sec, value, gas, gasPrice, init, body]}, cb);
-	},
-
-	getStorageAt: function(address, storageAddress, cb) {
-		postData({call: "getStorage", args: [address, storageAddress]}, cb);
-	},
-
-	getKey: function(cb) {
-		postData({call: "getKey"}, cb);
-	},
-
-	getBalanceAt: function(address, cb) {
-		postData({call: "getBalance", args: [address]}, cb);
-	},
-
-	getSecretToAddress: function(sec, cb) {
-		postData({call: "getSecretToAddress", args: [sec]}, cb);
-	},
-
-	watch: function(address, storageAddrOrCb, cb) {
-		var ev;
-		if(cb === undefined) {
-			cb = storageAddrOrCb;
-			storageAddrOrCb = "";
-			ev = "object:"+address;
-		} else {
-			ev = "storage:"+address+":"+storageAddrOrCb;
-		}
-
-		eth.on(ev, cb)
-
-		postData({call: "watch", args: [address, storageAddrOrCb]});
-	},
-
-	disconnect: function(address, storageAddrOrCb, cb) {
-		var ev;
-		if(cb === undefined) {
-			cb = storageAddrOrCb;
-			storageAddrOrCb = "";
-			ev = "object:"+address;
-		} else {
-			ev = "storage:"+address+":"+storageAddrOrCb;
-		}
-
-		eth.off(ev, cb)
-
-		postData({call: "disconnect", args: [address, storageAddrOrCb]});
-	},
-
-	set: function(props) {
-		postData({call: "set", args: props});
-	},
-
-	on: function(event, cb) {
-		if(eth._onCallbacks[event] === undefined) {
-			eth._onCallbacks[event] = [];
-		}
-
-		eth._onCallbacks[event].push(cb);
-
-		return this
-	},
-
-	off: function(event, cb) {
-		if(eth._onCallbacks[event] !== undefined) {
-			var callbacks = eth._onCallbacks[event];
-			for(var i = 0; i < callbacks.length; i++) {
-				if(callbacks[i] === cb) {
-					delete callbacks[i];
-				}
-			}
-		}
-
-		return this
-	},
-
-	trigger: function(event, data) {
-		var callbacks = eth._onCallbacks[event];
-		if(callbacks !== undefined) {
-			for(var i = 0; i < callbacks.length; i++) {
-				// Figure out whether the returned data was an array
-				// array means multiple return arguments (multiple params)
-				if(data instanceof Array) {
-					callbacks[i].apply(this, data);
-				} else {
-					callbacks[i].call(this, data);
-				}
-			}
-		}
-	},
-}
-window.eth._callbacks = {}
-window.eth._onCallbacks = {}
-
-function hello() {
-	debug("hello")
-	window.dataTest = true;
-}
-
-function debug(/**/) {
-	var args = arguments;
-	var msg = ""
-	for(var i = 0; i < args.length; i++){
-		if(typeof args[i] === "object") {
-			msg += " " + JSON.stringify(args[i])
-		} else {
-			msg += args[i]
-		}
-	}
-
-	postData({call:"debug", args:[msg]})
-	document.getElementById("debug").innerHTML += "<br>" + msg
-}
-
-// Helper function for generating pseudo callbacks and sending data to the QML part of the application
-function postData(data, cb) {
-	data._seed = Math.floor(Math.random() * 1000000)
-	if(cb) {
-		eth._callbacks[data._seed] = cb;
-	}
-
-	if(data.args === undefined) {
-		data.args = [];
-	}
-
-	navigator.qt.postMessage(JSON.stringify(data));
-}
-
-navigator.qt.onmessage = function(ev) {
-	var data = JSON.parse(ev.data)
-
-	if(data._event !== undefined) {
-		eth.trigger(data._event, data.data);
-	} else {
-		if(data._seed) {
-			var cb = eth._callbacks[data._seed];
-			if(cb) {
-				// Figure out whether the returned data was an array
-				// array means multiple return arguments (multiple params)
-				if(data.data instanceof Array) {
-					cb.apply(this, data.data)
-				} else {
-					cb.call(this, data.data)
-				}
-
-				// Remove the "trigger" callback
-				delete eth._callbacks[ev._seed];
-			}
-		}
-	}
-}
-
-window.eth._0 = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
-String.prototype.pad = function(len) {
-    var bin = this.bin();
-    var l = bin.length;
-    if(l < 32) {
-        return eth._0.substr(0, 32 - bin.length) + bin;
-    }
-
-    return bin;
-}
-
-String.prototype.unpad = function() {
-    var i, l;
-    for(i = 0, l = this.length; i < l; i++) {
-        if(this[i] != "\0") {
-            return this.substr(i, this.length);
-        }
-    }
-
-    return this.substr(i, this.length);
-}
-
-String.prototype.bin = function() {
-    if(this.substr(0, 2) == "0x") {
-        return this.hex2bin();
-    } else if(/^\d+$/.test(this)) {
-        return this.num2bin()
-    }
-
-    // Otherwise we'll return the "String" object instead of an actual string
-    return this.substr(0, this.length)
-}
-
-String.prototype.unbin = function() {
-    var i, l, o = '';
-    for(i = 0, l = this.length; i < l; i++) {
-        var n = this.charCodeAt(i).toString(16);
-        o += n.length < 2 ? '0' + n : n;
-    }
-
-    return "0x" + o;
-}
-
-String.prototype.hex2bin = function() {
-    bytes = []
-
-    for(var i=2; i< this.length-1; i+=2) {
-        bytes.push(parseInt(this.substr(i, 2), 16));
-    }
-
-    return String.fromCharCode.apply(String, bytes);
-}
-
-String.prototype.num2bin = function() {
-    return ("0x"+parseInt(this).toString(16)).bin()
-}
-
diff --git a/ethereal/assets/qml/newTransaction/_new_contract.qml b/ethereal/assets/qml/newTransaction/_new_contract.qml
index f6ed77fb6..f8f3d53a0 100644
--- a/ethereal/assets/qml/newTransaction/_new_contract.qml
+++ b/ethereal/assets/qml/newTransaction/_new_contract.qml
@@ -158,7 +158,7 @@ Component {
 					mainContractColumn.state = "ERROR"
 				} else {
 					txResult.text = "Your transaction has been submitted:\n"
-					txOutput.text = res[0]
+					txOutput.text = res[0].address
 					mainContractColumn.state = "DONE"
 				}
 			}
diff --git a/ethereal/assets/qml/webapp.qml b/ethereal/assets/qml/webapp.qml
index d02c9a82e..1f3c3874a 100644
--- a/ethereal/assets/qml/webapp.qml
+++ b/ethereal/assets/qml/webapp.qml
@@ -39,7 +39,7 @@ ApplicationWindow {
 			experimental.preferences.javascriptEnabled: true
 			experimental.preferences.navigatorQtObjectEnabled: true
 			experimental.preferences.developerExtrasEnabled: true
-			experimental.userScripts: [ui.assetPath("ethereum.js")]
+			experimental.userScripts: [ui.assetPath("ext/pre.js"), ui.assetPath("ext/big.js"), ui.assetPath("ext/string.js"), ui.assetPath("ext/ethereum.js")]
 			experimental.onMessageReceived: {
 				console.log("[onMessageReceived]: ", message.data)
 				// TODO move to messaging.js
diff --git a/ethereal/assets/samplecoin/samplecoin.html b/ethereal/assets/samplecoin/samplecoin.html
index 50182c136..6330b9ea2 100644
--- a/ethereal/assets/samplecoin/samplecoin.html
+++ b/ethereal/assets/samplecoin/samplecoin.html
@@ -5,19 +5,20 @@
 <link rel="stylesheet" href="bootstrap.min.css">
 <link rel="stylesheet" href="bootstrap-theme.min.css">
 <link rel="stylesheet" href="samplecoin.css">
-<script src="promise.min.js"></script>
 <meta name="viewport" content="minimum-scale=1; maximum-scale=1; initial-scale=1;">
 
 <script type="text/javascript">
 
-var jefcoinAddr = "136060151ebf11cd82456de1ab9406cc2a762b36"
+var jefcoinAddr = "b7cb72c47ec4f31751d0d628b5a33fd6671bbba0"
 var mAddr = ""
 
 function createTransaction() {
 	var addr = document.querySelector("#addr").value;
 	var amount = document.querySelector("#amount").value;
 
-	var data = (("0x"+addr).pad(32) + amount.pad(32)).unbin()
+	addr = ("0x"+addr).pad(32)
+	amount = amount.pad(32)
+	var data = (addr + amount).unbin();
 	eth.transact(mAddr, jefcoinAddr, 0, "10000000", "250", data, function(receipt) {
 		debug("received tx hash:", reciept.address)
 	})
diff --git a/ethereal/ui/gui.go b/ethereal/ui/gui.go
index 39da5f246..25f6e2fed 100644
--- a/ethereal/ui/gui.go
+++ b/ethereal/ui/gui.go
@@ -9,6 +9,7 @@ import (
 	"github.com/ethereum/eth-go/ethpub"
 	"github.com/ethereum/eth-go/ethutil"
 	"github.com/go-qml/qml"
+	"github.com/obscuren/mutan"
 	"math/big"
 	"strings"
 )
@@ -220,5 +221,9 @@ func (gui *Gui) Transact(recipient, value, gas, gasPrice, data string) (*ethpub.
 }
 
 func (gui *Gui) Create(recipient, value, gas, gasPrice, data string) (*ethpub.PReceipt, error) {
-	return gui.Transact(recipient, value, gas, gasPrice, data)
+	keyPair := ethutil.Config.Db.GetKeys()[0]
+
+	mainInput, initInput := mutan.PreProcess(data)
+
+	return gui.pub.Create(ethutil.Hex(keyPair.PrivateKey), value, gas, gasPrice, initInput, mainInput)
 }
diff --git a/ethereal/ui/ui_lib.go b/ethereal/ui/ui_lib.go
index 7fe610c6a..35ceb7d79 100644
--- a/ethereal/ui/ui_lib.go
+++ b/ethereal/ui/ui_lib.go
@@ -59,14 +59,6 @@ func (ui *UiLib) OpenHtml(path string) {
 	go app.run()
 }
 
-func (ui *UiLib) Watch(addr, storageAddr string) {
-	if len(storageAddr) == 0 {
-		ui.eth.Reactor().Subscribe("storage:"+string(ethutil.FromHex(addr))+":"+string(ethutil.FromHex(storageAddr)), nil)
-	} else {
-		ui.eth.Reactor().Subscribe("object:"+string(ethutil.FromHex(addr)), nil)
-	}
-}
-
 func (ui *UiLib) Muted(content string) {
 	component, err := ui.engine.LoadFile(ui.AssetPath("qml/muted.qml"))
 	if err != nil {
@@ -78,8 +70,6 @@ func (ui *UiLib) Muted(content string) {
 	go func() {
 		path := "file://" + ui.AssetPath("muted/index.html")
 		win.Set("url", path)
-		//debuggerPath := "file://" + ui.AssetPath("muted/debugger.html")
-		//win.Set("debugUrl", debuggerPath)
 
 		win.Show()
 		win.Wait()