Looks interesting. Definitely a step up from AZERTY which when I've looked at it seems to have been put together by someone who insists on holding French programmers back.

This still puts a lot of emphasis on right-most part, which makes this quite unbalanced for programmers I think.

Personally I would never go back to any layout that doesn't have a numpad and all special chars a programmer needs without moving the fingers 1 row up or down.

Once one gets used to this everything else seems archaic.