>What makes the most sense of course is a spherical keyboard - seeing how that's the natural position a person hold's their hands. >Only image I could find of something similar to what I was thinking is this: http://perso.ensad.fr/ari/archives/2005_06/wu/detect2.jpg >I've actually considered attempting to make one myself before as I've never seen one for sale.
These products look like they might be worth a try: