Great cheat sheet for converting games written with XNA 3.1 to XNA 4.0. While this is probably useful mostly for people who were doing game development for the Zune (which is based on XNA 3.1) and now want to port it to Windows Phone 7 (XNA 4.0), it’s also a good cookbook-style list for common operations like “Reset blend and depth write” or “Draw a fullscreen sprite to apply the postprocessing effect.”.
Great article (accompanied with the source code) on implementing tilt controls on the iPhone properly. I was working on a game in the beginning of 2010 where we had tilt controls and I remember vividly how painful it was to polish them and I don’t think we ever came up with the satisfiable result, I wish I read this article back then.
Thinking about using Unity for 3D games development for iPhone and other platforms – here’s a good list of all books and tutorials to help you to learn it.
Popular indie game Canabalt is now open-source. You can grab its source code here, even though the author warns you that the code was re-written from Flash in a record time and it’s a mess
Good list of all built-in fonts for iPhone and iPad along with all variations – this is an indispensable resource for anyone designing apps for iOS