A few years ago I was yapping with Webwit (am I allowed to say His name?) and we agreed Kinesis "almost got it right" with the Evolution, on so many levels. It was a formative ergo step with more than it's share of positives...BIG positives...split keyboard, mech switches!, integrated pointing device, DUAL integrated pointing device option, table-tray-chair mounting options (albeit 3 different models), the chair mounting is the same equipment as the Datahand chair mounting (doesn't get better than that), as well as the various programming features. Almost NAILED IT! Damn staggered rows of keys ruined it...shoulda listened to me! But overall kudos to Kinesis on that...of course it was during the "Ergo Rage" of the heady mid-90's, when ergo was in, disco was out, and we thought the tech boom couldn't bust.
Those pop up on eBay from time to time, a number of Geekers have them, a must for any collector, eh Hoggy, Ricercar, Webwit...?