New Homemade Stepper Drivers based on the TI DRV8825: Appelflap!

Hi!
I've designed a Pololu based and compatible stepper driver, see my (quite extensive) post on the Deltabot mailing list (here: https://groups.google.com/forum/#!topic/deltabot/az-O4TG-D-0) for more information and my Altium source files + Gerber files.
I haven't tested the board IRL, I wanted to have it checked by some more skilled users first before I order a couple of boards.
Would anybody a tad more experienced than me be so kind to check my design for any errors and/or possible improvements?

Thanks!

Sorry, can't read your files!

I was also thinking of designing a DRV8825 carrier, it is difficult to get hold of A4982 round here.

That's strange, I haven't got any problem opening them here?
Which file(s) did you try to open?
I haven't got a problem with opening the main PCB file, "DRV8825 Printplaat.PcbDoc".
Which version on Altium Designer do you have?
The board is designed in AD10.

I don't have any version of Altium Designer, that is the problem!

Ah, well, than it indeed is quite difficult to open the files! ;-)
Which file format would work for you?
I maybe can convert the files so you can open them.