Again guys just to point out, Flipclock is designed for exactly what you're talking about: full screen clock (with alarm functions). If you go to "night mode" you can even set the colour of the display... and if you press the little back/escape (curled over arrow button) you can put the clock into "insomniac mode" which will cause the display to stay on at the "dimmed" state all night, so you don't even have to reach over and wake the tablet up... I use it all the time like this as it now acts as a complete replacement for my old digital clock (just remember if you're going to use it that way make sure the power cable is plugged in or the display will drain the battery).