I looked around the forums and didn't see much on the iphone-controlled R/C car project (I may have missed it), so I just have a simple question. I'd like to attempt this project, but I don't have an iphone, I have an android phone. Can I do this project with my phone? (if yes, then I may have lots of questions after I buy the R/C car and dig into the project).

Well in the Nerdkits RC Car Project the Computer sends the control data to the AVR Microcontroller dependent upon interaction with a webpage.

So control of the RC Car should be possible from any device that can access that webpage.

The key-code runs on the Computer not on the iPhone, or in your case Android Phone.