So my girlfriends birthday is here soon and shes stuck with a slider phone, and has been wanting a new phone, mp3 player, and something to play around with, so I thought I would just get her an iPhone. Now I'm alittle short on money to get a 4S so I'm just going to go with a 4 as its what I have and she likes my Phone. I Have around a $300 budget but I'm on AT&T so I Was looking to get one on eBay for her since shes on verizon, but Ive never had to deal with this "ESN" and "MEID" crap.. and i'm not sure if she has a data plan, so If i got one for her thats a "clean ESN" and she doesnt have a data plan verizon wont force her to add a data plan, and she can just switch the Cellular data plan off right? And how easy is it to replace the phone on her line with the iPhone? Sorry for being a Noob, This is just why I Hate CDMA carriers and crap. Plus I Prefer faster Data speeds but, she cant change carriers so.