My phone (AT&T Avail made by ZTE) has an internal storage of 512 MB. However, when I go to "manage applications" it shows internal storage as 143 MBused and 20 MB free. This would equal 163 MB total.512 minus 163 should equal 349 MB. Where is this 349 MB? Also, I have a 32 GB SD card installed with approx. 30 MB of apps moved to the card. Can someone please tell me if it's possible to gain more internal memory and if it's possible to root this phone. Thanks.