I managed to build my thumbtribes client for my OpenMoko phone. Building the application was a lot more straight forward than I thought it might be. This is really due to the excellent cross compilation-aware Chicken compiler.  The phone client seems to run smoothly and does not hog memory or CPU.  This is an important step forward as I can now concentrate back on the development via the desktop knowing things are going to work ok on the target device. Some screen shots of the basic interface can be found here.

Although the looks of the client will change quite a bit the overall functionality is there. The user will login. They will then get a screen showing the distance of users. By clicking on a user their profile will be retrieved. The tabs will swap between the user list and profile view.