If you wonder for the requirement, I found this:
Mac OS X version 10.5.3
Intel Core Duo processor
1GB of RAM (2GB recommended)
128MB video RAM (ATI Radeon X1600, NVidia Geforce 7300, or higher (Intel Integrated GMA X3100 also acceptable)
4GB hard disk space (and an extra 1GB available for creations)
otherwise, looks like a nice game
getting it now to test it, brought it to my iPod, but it sucked my battery badly!