Check out the "iOS apprentice" tutorials. I think they cost about $30, but it walks you through building 4 non-trivial apps with full source code. It also targe

Check out the "iOS apprentice" tutorials. I think they cost about $30, but it walks you through building 4 non-trivial apps with full source code. It also targets iOS 5 and 6, so most of the cool new features (automatic memory management anyone?) are covered.