Is this guy real? I'm not sure. I'm 50/50. I can argue a great case of both sides. Also, which is better? Somebody like him or somebody that would waste time putting up those reviews.
One for home and one for work. I've been using them for years. I tried the 4000, but I didn't like the feel of the space bar which is the key you use the most by far.
Yep, I try to keep an extra one or two in the basement myself in case my main one goes bork. I think the feel is far superior to the 4000. I also put down the $$$ for the Kinesis and, though I like it a lot in many ways, it is a bit more than I need. I'm doing this primarily for comfort and speed, not out of CTS-induced necessity.
Watson was written in mostly Java but also significant chunks of code are written C++ and Prolog, all components are deployed and integrated using UIMA.
P.S. View source.