basically i got a free evo 4g. my mgr thought she lost her phone went to sprint got new one under her ins plan few days later found it under her car seat. anyways she gave it to me to play around with. I have tmobile (blackberry) so i just use this primarily as mini tablet to just surf web, play games, get my andriod on, etc. my question is is there way to remove the radio completely? and just use wifi? i figured it would save on battery. i have it rooted w/ cyan newest stable mod.