I'm still concerned about name lengths. As a database administrator, I was constantly frustrated by the designer's decision to limit last name fields to something like 15 characters and then I'd get a user from India who had twice that. However the solution could be to use two lines.

Also I went with the maemo.org colors on the front because the black/red theme was already represented on the back. The badges bridged the two. But then again this is probably academic.