quick question for you guys. I found this question somewhere else but the moderator had moved it, so there were no answers where the moderator moved it and i can't find where he moved it from, i'm new to the forum thing but pretty decently saavy i flashed my own phone for text talk and web, i know that isn't much compared to what you guys are doing, but to get right to the point, my big question is, can i upgrade my cricket flashed cdma hero from 1.5 to 2.1 and then reflash for text talk and web, or is there something preventing me from doing it, also what do the different roms do? what do they change? is it performance based...aesthetic only or a little bit of both..anyyways what's in bold is my main question. please be nice, I know i'm a noob and you guys are tech gods! haha.