A bit of a "blue-sky" post here - pun half-intended
Close to the top of my list of "things I'd like to do someday when I have time", is "learn astronomy". In particular, I've always been interested in the idea of telescopes which can be computer-controlled via an interface/protocol such as INDI
Now I'd imagine that in most cases, you would have your INDI-compatible telescope connected to a computer directly (it seems that serial (RS232) interfaces are still popular for telescopes). However, I can imagine that in some setups, you might want your telescope set up permanently somewhere (e.g. your garden, attic, whatever), but you might also want to be somewhere else than right next to the instrument - for instance, in the (warm) house on a cold night!
To my point: has anyone thought of using a Raspberry Pi as a remote-control for an INDI telescope? I don't actually have one of the latter, so it might be a silly idea - for one, INDI works over TCP/IP, so for all I know, one could control the instrument "directly" over the network without needing another computer in the way.
For that matter: I wonder if the Pi has enough "grunt" to run xephem