I'm excited to try this! I started down the Stella path but stalled out pretty fast when I found out how much I take for granted from Foundation classes that aren't available and had to rewrite myself in C (like simple file I/O).
I'm hoping that resolution support just kinda works, even if letterboxed, and that AdMob integration isn't bad.
Downloading now...
Check out [UIScreen setCurrentMode:] extensions if you want to get the resolution looking reasonable quickly.