I know there is like psp, and blackberrys and palm pilots....but how do they work...i mean i know blackberrys have a monthly plan..which i am NOT interested in...I wanted to know if there is one that doesnt have a monthly plan that you can just recieve internet thru wifi or something...like psp...does that use monthly charges? or a palm...do those just work with wifi or do they have monthly plans on them....thanks for you help guys!!