I'm eligible for an upgrade in early April but before I did I have a concern. I recently found out that Sprint now charges an additional $10 fee for all smart phones. I knew they charged the $10 fee for the 4G phones but didn't know they now charge the fee for all smartphones. I got my Moment way before they made this change so my plan under my current contract doesn't have the $10 fee included. If I get a new phone next month (non 4G) and extend my contract for another two years will they then start charging this additional fee? If so, I may just keep my Moment for another year until my current contract expires.