First of all, thanks for coming up with the layout. It's nice to have an efficient, comfortable layout alternative over QWERTY.
I made the switch a little over a year ago and at the time decided to document my progress. I slacked off over the second half of the year but hopefully someone might find this data interesting.
http://spreadsheets.google.com/pub?key= … CrHkkofkQg
I made the switch while using, and continue to use, a Das Keyboard II and it's pretty funny when people try to use my computer -- a completely blank keyboard with a non-standard layout :)