A few days ago, my iPhone 3G WiFi stopped working so I got an exchange unit. I'm not sure wether it's refurbished or brand new, I think it's refurbished though. So, I went to check the firmware out on the iPhone and it showed 2.30.03. I was shocked cause from what I know there's no 2.30 firmware. But on iTunes it showed 2.2.1. Is there something wrong with my phone ? I would like to keep 2.2.1 and do not intend to upgrade to 3.0.