My game Vector Blaster is now available on the iTunes App Store for iPhone. Vector Blaster is an arcade-style game inspired by Tempest.
For the iPhone version I ported Rude Engine over to use OpenGL to take advantage of the graphics chip in the iPhone. (Things actually ran fine just doing pixel painting, but it was a fun project..) I also redid the input system so that it works with the multi-touch interface. I think it turned out surprisingly well, sliding your thumbs around on the screen really feels like you're using an analog wheel like the old Tempest arcade game. For music I ported MikMod over to the iPhone and used the same great tracks I licensed for the original... they sound incredible on the little iPhone speakers.