question for you experts here... when signing up for a contract with your iphone provider, how do you know if you need an unlimited data plan? i've had unlimited for the past 2 years and to be honest, i don't know if i really needed it. the iPhone was a gift so i had no say in what data plan was included. it was given to me and i was told this is what you have. now that i'm out of contract and looking at the new phone, i don't know if should continue with the unlimited plan. i did report check for this last year and got the following: data usage trend highest was 133-157mb for 2 months. data usage charges highest was 84 for 1 month. i mostly check my email and do limited surfing on the phone. don't watch youtube videos, movies, or anything of that sort. so is my current unlimited plan overkill? with the new imessage, how does that effect data usage? thanks all!