Is it just me or my feeling, for every hard reboot, the system seem to zap a lot of power from the battery. Sometime, it drop like 2 bars. Also, it seem if the system is not properly shutdown or screen lock, the battery got drain like overnight. This is quite important, on the 770, the hard cover will do that for you and it's no brainer. I don't want to think about that every time I put it in my pocket or have to shut it down before I go to sleep.