I sort of want an iphone but I don't want ATT and i don't really care about getting a ton of expensive apps. I just think they look kind of cool and i want a some of the features that come with an iphone but i don't really need all of them (or to pay an insane amount of money for one). Are any of the knockoffs reliable enough to actually use for a year or two? Also ones that can stay charged for more than 2 hours?