VeloAce is an open source bicycle computer for the Palm PDA.
I had a go at porting Veloace (http://veloace.sourceforge.net/
) to the XP environment so that I could use it on a PC when training indoors on my stationary bike.
I downloaded Visual C++ Express and tried compiling the code but immediately encountered difficulties.
I'll continue grappling with this project when I get the time but in the meantime I thought there might be others more competent than myself that may be interested in giving this a go.
I figure this project would be of particular interest to people that are interested in projects which interact with the physical world.