I stumbled upon this recently: http://www.linaro.org/low-cost-development-boards/ I already knew about the Pandaboard, Beagleboard and Freescale's IMX53QSB, buut the other two I hadn't heard of and the spec looks quite good (dual core A9, 1GB of RAM). The price isn't too bad, either, and the format looks easy to put into a 1U rackmount case. Gordan