I'm sort of new to Android and I was wondering how I could not only open more than one app at a time, but switch between two or more running apps, sort of like the Alt+tab feature in Windows. The device is pretty cheap, so the operator's manual isn't of much help. I'm using the device to listen to audio speeches while jotting down notes. And how can I do this on a Android 2.3 7 tablet? The device is a new CrystalView XT (two-in-one notebook/tablet) and comes with a keyboard.