Interesting the new BeagleBone board is going to be $45, where RPi is $35. BeagleBone is a suped up RPi (well its been around longer than RPi), it has A/D on it and more horsepower, and until now, was at least $100. What the author fails to mention is RPis really cost $45 after shipping, and the cheapest I could find a BB was $60 after shipping. RPi still wins in my opinion.
http://www.theregister.co.uk/2013/04/24/beagleboard_launches_black_board_computer/