50 is really nice. Resolution fixed. Smooth. Fast. Wakes out of deep sleep. only thing I'm noticing problem wise is a few buttons on the dial pad and keyboard not rendering and no sound on voice calls
*edit*
Noticing sms and data cuts out during deep sleep sometimes. Not consistently but when it does you have to do a warm reset
*edit*
Noticing sms and data cuts out during deep sleep sometimes. Not consistently but when it does you have to do a warm reset