Just a tip for all you that have installed Snow Leopard.
It forces you to install xcode 3.2 and then you have to install the snow leopard 3.0 sdk and it removes the 2.21 stuff.
This has caused a few problems because I want my games to run on 2.21.
Apparently it's an easy fix. Use 3.0 sdk but change the iPhone deployment settings to 2.21
Just a tip (if you didn't know) I know it's caused a stir on a few forums I'm on.