iphone menu like tap tap

hi guys how do I make a menu like the one that tap tap "where to" app uses, (circular menu, that gets highlited when touched)

As I saw in some ww开发者_如何学JAVAdc video they explain the design behind this app, they explain that the menu was a table that goes to a view before being placed in the circle, so it haves a nav bar after an item has been chosen,

I saw this link designing convertbot, they explain the design for their menu but not the coding or how it works (noob here!)

ok thanks a lot!

I have found something kind of similar

tapsandswipes

using core animation.

Would be possible to roll own menu