As a comparison, the Beaglebone Black (http://beagleboard.org/products/beaglebone%20black http://beagleboard.org/products/beaglebone%20black) uses a TI chip, wh

As a comparison, the Beaglebone Black (http://beagleboard.org/products/beaglebone%20black http://beagleboard.org/products/beaglebone%20black) uses a TI chip, which is at least fully and properly documented. It is also better than the BCM chip at pretty much everything except high-resolution video decoding. The Raspberry Pi is a cool machine, but the "open source" hype about it is rather exaggerated.