I found it listed somewhere for $50. It's specs are about double the $25 Raspberry pi. When the 80 Mhz Stellaris is released, it may be capable of running a stripped down Linux with the addition of an sdcard and/or fram chip, for about $10 or less in parts.
If any one knows how to connect usb devices to android phones, it would be most fortuitous if you showed up tomorrow, because I am working on connecting a droid phone to a usb motor controller. You will be rewarded with beer, a wonderful sense of having aided society and the priceless company of hackers.