Flipboard like 翻頁特效

http://www.iphonedevsdk.com/forum/iphone-sdk-development/68240-flipboard-how-does-work.html

http://www.iphonedevsdk.com/forum/ip...animation.html

https://github.com/brow/leaves

really cool to read:
Implementing 2D Page Flip effect on iPhone OS | NOMTEK

Page Flip - iPhone Development Wiki