is it a hardware or software problem?

Since I bought my 3G iPhone it has crashed and restarted the phone about 6 times. I wouldn't consider this a huge issue accept when it restarts it gets stuck on the apple logo screen which causes me to restore it... then the restore gets stuck when i try to do the restore from back up which then causes me to restore to factory settings then spend hours setting the phone back up... does my phone have an issue that i should address at the genius bar? or is it just because 2.0.2 is a pretty unstable release?