I bought mine last night from Target and it froze twice when the pages went haywire. I first hit the power button, which took me to the main home screen, which was frozen as well. I then held the power button until the unit turned completely off. I immediately turned the T1 back on and it worked fine.
So, for the freezes with no solution, turn the unit completely off, then back on.
Sony needs to fix this issue.
For available space: blank
SD space: blank (no card inserted)