I got a new laptop after Christmas, it my back up & important papers/files machine -, so I only use it once in awhile.

But it has built in mic & voice recognition with Win 7.
You can also plug in a mic to use the VR.
Getting it set up didn't take very long and you can do quite a bit of things with voice instead of mouse or touch pad.

I think Vista has the VR available too.

And Mac has a similar thing, I can't recall the name of it though. ispeak??

Part of it is laptops have a narrower/smaller keyboard so putting wrists closer together in front of you usually rotates elbows out and shoulder rotate in.
usually not a good position of most of us.
I have to use a separate mouse for comfort with my laptop - touch pad is not that great for me.

viewing height/angles w/ laptops.. tough part is getting it so you aren't looking down too much, but can still type or touch pad in comfort... trial and error thing. experiment to see what works for your situation.

My desktop is my main and most ergo set up.