I hope this is relevant to some, I spotted the following earlier which might be of interest to some looking for the kind of functionality mentioned earlier
http://www.raspberrypi.org/phpBB3/vi...p?f=41&t=15723
All Linux based but it's a space worth keeping an eye on, I'm going to try out some of the apps on my Ubuntu setup (had a Raspberry on order for a while). I'm especially interested in the Astrometry stuff, something I started to consider trying to do a couple of years ago but didn't know enough to try.
Bob