I really wish I could take part in all this keyboard fun. Unfortunately, there's a 20 degree upward curve in the middle of my right forearm (due to an old injury). This limits my options to the Kinesis Freestyle [1] and maybe the Goldtouch. The Freestyle is okay, but I miss the switches of more substantial keyboards.

Can anyone recommend a more hacker-friendly split-in-two keyboard along the lines of those discussed in the article?

[1] http://www.kinesis-ergo.com/freestyle.htm