2D isometric engine?

[hailstorm]

I'm looking to develop my own game on the iphone and hopefully make a little money as well. I don't have a great deal of experience programming except some php and C#.

I've started going through 'Beginning iPhone Development: Exploring the iPhone SDK'. While it has been fairly straight forward following the example apps the Objective C syntax looks completely foreign to me so I've decided to work my way though 'Cocoa Programming for OSX' first.

Getting to the question I wanted to ask, is there any game engines for the iPhone that would be suited for developing an isometric game?