Rasbian Wheezy with Octoprint installed.
 
http://octoprint.org/ 
http://www.raspbian.org/


OctoPrint:

The responsive web interface for your 3D printer

Make your printer wireless

Connect your printer to a small embedded and WiFi enabled device such as the popular Raspberry Pi, install OctoPrint on it and you have an instant wireless printer.
 
Control your printer

Start, pause and stop print jobs, remotely move the print head along all axes, extrude, retract or just define your own custom controls.
 
Monitor your prints

Get constant feedback regarding the current progress of your print job, your printer's extrusion and bed temperature. Watch your print live via the embedded webcam feed or create a timelapse movie.
 
Free as in beer and speech

OctoPrint is free and open source software released under the Affero General Public License (AGPL).
 
Visualize your gcode

OctoPrint incorporates the awesome gCodeVisualizer by Alexey Ustyantsev which allows you to visualize your gcode files before and even during printjobs.
 
Highly compatible

OctoPrint has been proven to work with many different printer electronics and firmwares. 

Give it a try!