Xah Lee, 2010-08-27
Logitech created this funky Wave keyboard sometimes in 2009.
“Logitech Cordless Desktop Wave Pro Ergonomic Keyboard”
Logitech's got this Wave keyboard. I never actually used it, but only tried it out in stores. Am not quite sure such wave design is ergonomic. The keys are not split. Nor are they curved much like a smile such as with Microsoft's Comfort Curve keyboard. It just dents up and down, i suppose because your index fingers are longer so it dents down there.
However, Amazon seems to have good reviews. Such matters really needs to be personally tested out and used for a week to judge well.
Check out the promo vid on amazon.