Some facts: GPS was probably the problem in your case. Deactivate (i.e. close any running GPS app) when not in use. A good quality access point supporting "PSM" will mean your tablet can stay on 24 hours or more connected to it. The scrolling RSS home applet stops updating (as all good apps do) when the screen blanks, to save power. Turning the tablet on & off takes *masses* of battery; leaving it on, but idle, is generally better. Some apps & applets aren't well behaved and will wake the device up every minute; or keep updating the screen even when it's off. It's difficult (currently) to identify these without some trial & error. HTH.