I was wondering what everyone is using. Since there seem to be quite a few UK people here, I decided to add some UK carriers. I've only put the four biggest for both countries. Personally, I'm using Verizon right now, but plan on breaking my contract and going with T-Mobile so I can use it internationally. I've used all four in the US, and I think Sprint and T-Mob are the best. EDIT: Oops, forgot to put in T-Mobile UK. I guess just put yourself into the other category.