I mean the battery lifetime. I use my iPad a lot, like now for instance. Mostly to surf the web. I don't really need backup. For me It is an interactive media.

I mean the battery lifetime. I use my iPad a lot, like now for instance. Mostly to surf the web. I don't really need backup. For me It is an interactive media. I don't expect these other devices to beat the iPad on this aspect soon. I heard HTC is planning to increase their CPU speed. For me autonomy (energy) is much more valuable.