Hi, I have a v1 iPhone here in Melbourne, Australia. I use it unlocked on Optus prepaid and recharge $50 a month which works well for calls, texting, safari and email. I will be getting the new 2.0 software but I just bought a new Mini and it doesn't have Navigation so I use Maps a lot with my current iPhone, GPS with the 3G would be very handy. I do browse quite a bit and this iPhone runs on GRPS which is soooo slow, way slower than EDGE. Is it worth me upgrading to the iPhone 3G with Optus? I'd be on a contract for 24 months and be paying $66 per month with $350 of calls/text and 700MB of downloads. Take it or leave it? What do you think? Thanks in advance!