Check out the Tab LapDesk from iSkelter. It's a wooden desk for your lap that has a slot designed to hold your iPad, iPhone, or both devices at the same time. I suppose it would hold Android devices, too, if that's your thing. In any event, it gives you a nice writing surface while holding your devices. Simple and elegant. It's priced at $49. Oh, and there's an optional built-in white board—one for lefties and one for right-handed folks! That's just clever.
Check It Out: Tab LapDesk Has Writing Surface and Holds Devices