So the story is, my brother got an LG Shine yesterday after I got his 3G. I still have my iPhone 2G lying around. Would I be able to unlock the iPhone 2G, put his SIM card that went into the Shine and him be able to use the 2G? Doesn't feel right me having a 3G and him having a shine.

And yeah, I know about data plans. So would I just advise him not to use safari at all?