[chitza]

Nope, it's a modified version of ExpandableNavigation from Tobin Schwaiger (http://tob.in/post/15654557154/how-does-path-2-0s-iphone-app...). Which reminds me I forgot to credit him :(, thanks for asking.

[aaronbrethorst]

cool, thanks! http://www.cocoacontrols.com/apps/271-fliple