I would say odesk is is good for 1 reason only.... you can see snapshots of what the UI developer is working on as they do it. So you should be able to see if t

I would say odesk is is good for 1 reason only.... you can see snapshots of what the UI developer is working on as they do it. So you should be able to see if they are going down the right track early before they finish! It depends if its pure GUI or UI ... I think you should split up the project into 2... GUI is to get design and colour scheme. UI is to get the interactions you want and the flow... We have used odesk, and we found that we can get GUI design done, but UI is really dependant on your target user market... This is difficult to outsource unless you really direct what you want done...