Robin Hoods Playground

What are the physical difference between iPhone 3g and iPhone 3GS? Aside from increased ram, better processor, video capability, oil resistant screen, I have trouble differentiating iPhone 3g and iPhone 3gs. I heard that the lettering on the back of 3GS is shiny and chromed compared to the dull lett...

What are the disadvantages of using the iphone w T mobile? I want to get an iphone but i dont want to leave T mobile. I know i can get someone to unlock the phone for me but what would be the downside to doing that? Also if anyone has an iphone can you tell me what you DONT like about it. Thanks.