I just found AppleVis; what an excellent resource!
Although I've been in games and game sound for 25 years, I'm a new developer of iOS apps focused on "audio-games"-- videogames where audio is the main gameplay element.
I'm happy to see such a great community here.
I especially enjoyed the article for app developers on VoiceOver and accessibility in general. In doing our game, I learned about VoiceOver. I had no idea that iOS had such good accessibility integration. It took me only a few minutes to add preliminary accessibilty to our game. But after seeing a) how easy it was and b) the things that were possible, I ended up completely re-thinking some portions of the game and how a visually impaired player would navigate and play the game.
Executive Director, GameSoundCon