Hi, when the Samsung Galaxy S4 comes out i shall be buying it, although my main problem is what network to go on, now, i have been a loyal O2 customer for years and years and have never really encountered a problem with them other than the usual loss of service when they go down etc little things like that but not any big major issues. until now, atm i have a 1gb data allowance with O2 and honestly that's not enough for me because when im out and about i would like to use the full potential of my phone and not limit myself because of a data cap but i cant do that. This is why im thinking of moving to three because of their unlimited data. Obviously i know its not actually unlimited but i can pretty much use as much as i can each month. what my main concern is is that i have been on review websites and 99.9% of the reviews have basically said dont go to three never do it the worst mistake of your life it will be. I need some help what to do stay with O2 but on a limit with such an amazing phone as the Samsung Galaxy S4....can i cope with that. or try my luck with three which ill be stuck with in a 2 year contract? Thanks