Flap
Flap was developed for the Xbox marketplace using XNA Game studio 3.1, GIMP graphics editor and original music. It has been converted to XNA 4.0 along the way.
Flap started life as a project that I could complete with my children. Both of my children are creative and being children of a modern age are pretty comfortable with computers. One wet Sunday afternoon the discussion was around "what shall we do this afternoon?"
That afternoon the beginnings of Flap were put in place.
Quite a bit of the content was authored by the kids. I didn't quite manage to get them to do the programming!
Converting from XNA3.1 to XNA4.0