Letting my prusa do what it's made for, replicate! ;)
Marlin firmware, slic3r and pronterface rock.
Hoping to finish my second prusa soon and want to interface it with a raspberry. Web app on raspberry->upload stl or gcode with browser -> raspberry receives file and sends to sanguinulolu -> polling in web interface to show webpage with temp, progress etc. Making it the first network-prusa ;).
I've nearly completed the web interface, first prototype of it is written in node.js and on github.com/w-A-L-L-e
The black prusa is also almost finished now. Just some calibration left todo this weekend ;)