Been running my Cube on my Rasp Pi for 24 hrs now and hasnt missed a beat! I have to mention that BFGminer as a proxy is faaaaaarrrrrr better than the Proxy from Slush's, it seams to use maybe only 1/10 the CPU and gives a much more stable gh.

If any one wants Pi setup details for BFGminer let me know and i will make a post describing my steps.