I Think You're not aware of:
http://talk.maemo.org/showthread.php?t=65568
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As for update - I'm quite busy recently, but slowly going ahead. I've received first, "testing" aluminum (not the one that will make final thing - current one is weaker and cheaper, just for testing purposes), but my Chinese CNC step motor driver - something like that:
http://www.aliexpress.com/product-gs...olesalers.html

...just burned out. No big deal, as I've expected it to happen (due to experience gained while building machine, I know that they're just wrong in design). I've immediately ordered self-made (by other DIY CNC user) *proper* driver board, that are known to work very well, and it should arrive soon.

I also promise to post some video/photos of machine working with new driver

/Estel