I use a laptop exclusively. My hunched over posture shows irrefutable proof of this. The Alto is a Logitech combination keyboard and laptop perch that puts the screen at eye level, so you can keep on computing with perfect spinal alignment. The USB keyboard has a full layout, including media keys and a numeric keypad. The setup also doubles as a 3-port USB hub. And it's easy to setup, unfolding from a laptop sized case in about 30 seconds.
Interesting, interesting. I'm tempted to try this bad boy out. But I think my bones have fused, and it'll hurt way too much to sit up straight. There's still hope for you, though.
Jump for a picture of the Alto folded up all nice and tight.