A set up Prismas is still tempting, though I have to run the maths again, but:

Is anyone (maybe friedcat?) working on a proper image with cgminer and web-GUI for Raspberry PI or similar device (still not sure, if a Raspberry PI is suitable or not due to USB limitations?)?

The Prisma may be a very interesting device, but bare bone and having to reinvent the wheel with an own control unit is not really user friendly, and as mentioned before, I don not even consider that buggy/limited ethernet controller.

I'm not a programmer/developer and I don't have enough time neither, so if anything concerning that matter is going on / in the works please let me know, as it would definitely influence my purchase decision.