The new Beaglebone Black seemed to be making quite a stir. The mustache camera at the Ti booth is powered by one.
From what I've heard and read about it, it's potentially a rival to the Raspberry Pi in terms of cost and capability. The Beaglebone is open source, but the Pi has a few more connectors built in.
I've been evaluating the Raspberry Pi for a couple of weeks now and I find it relatively easy to use (considering that it's Linux powered) and has quite a bit of power for the size and cost.
I'm anxious to get a chance to look closely at the new BBB and see how it measures up. I tried to find someone to order from while I was down in San Jose, but at the time, everyone was sold out. I'm sure they're available now though.
BBone Black's chief advantage over RasPi is that BBone has far more I/O pins so it's a superior platform for hardware development. There are some lively discussions at raspberrypi.org and element14 comparing the two.