It's just a computer, so really there's nothing you can do on this, that you can't already do on another PC. They will be doing educational material for this using Python as a programming language.
http://thenewboston.org has lots of different tutorials for loads of different areas and I have found them quite useful.
They have Phyton tutorials here:
http://thenewboston.org/list.php?cat=36
A guy on YouTube also has a channel starting to do tutorials specific to the Raspberry Pi:
http://www.youtube.com/user/Raspberr...eature=g-all-u