I built my first iOS game[1] last year using Amit's original hexagon guide. This new guide would have been useful too. Still makes for good reading now.
nice game.
An annoying bug though, most of the times when the game is interrupted (by receiving a phonecall, or simply clicking the home button then opening again) nothing is clickable anymore and you have to kill it and re-run in order to get it to work again.
Thanks. That issue only started with iOS 8.3, still trying to track down the cause. Very frustrating, since the app hasn't been updated since before 8.3.