[boredandtattooed]

first who cares what you use it for, most of US myself included openly admit to our wmwifi use.. tell anyone who gives ya crap about it to pis off lol...

anyhow, run wmwifi, go into cellular connections and its your screen to change it to sprint... dunno who much diff it really makes, like u said unless it notes use of PAM, but youll be all goood man... change it just to be careful and for piece of mind i guess but your straight

***edit*** theres certainly no automatic charge also, to answer your thread title...