This batch of the old UDB3 boards tested fine but didn't quite live up to visual inspection. The solder work is a little sloppy here and there but all in all they're probably okay for the most part. Since they don't look as nice as we'd like, we're selling them as-is at a discount. If you don't mind cleaning up a sloppy board for a few bucks off then you should jump on this deal. We only have a few in stock and when they're gone, they're gone for good. Project description, more information and ordering can be found at https://www.sparkfun.com/products/10852 User's Manual: http://www.sparkfun.com/datasheets/GPS/GPSUAV2Manual_v29.pdf Source Code: http://code.google.com/p/gentlenav/ UDB Discussion group: http://groups.google.com/group/uavdevboard DIY Drones post: http://diydrones.com/page/uav-devboard