unity-game-engine

Oolong, SIO2 or commercial Game engine for 3D iPhone Games newbie?

I'm trying to pick between the Oolong and SIO2 free iPhone game engines for my first game programming project. I have some Cocoa experience and many years of C++ including relatively low level 2D graphics and developing Quicktime plugins but only minor OpenGL exposure. Which engine would be easiest to learn and most productive for someon...

Game engines for iPhone vs. native iPhone sdk development

What are people's opinions and/or experiences with game engines such as Unity or Torque Engine? If one were new to iPhone game dev is it worth it to learn one of the engines? What is the performance difference between apps generated by those engines vs a natively built App using the sdk? ...