I've been wanting to purchase this app for awhile now. And with the celebration of 3.1 I finally shelled out the 7 bucks and downloaded it. What can I say? The game play is amazing, so many tracks and different cars. I'm a NASCAR fan and this is the closet you'll get on the iPhone. Sure Need For Speed Underground is a great app, but it's not just full out racing. This is really the best racing app there is...hopefully EA gets off their butt and makes a NASCAR 2009 app or something. If any of you are doubting...please don't, just buy it!