I demand that Zagg provide an update!

[jthessin]

Is it heavy enough to have on your lap without the feeling of it flipping over?

I think you would be fine. I've used it on my lap before. Your mileage may differ based on angle of your lap, how wide you have opened the cover, and whether your hands are resting on the keyboard....my biggest complaint so far is the little rubber feet they provide do not stick very well under real world conditions of sliding it around in your pack, on desk surfaces, etc.