I have just launched a new Arduido IDE + Teensy 3D printer electronics. The board was designed within the RepRap Clone Wars community group.
The Clone Wars RepRap group has a bunch of enthusiasts (couple of hundreds) with a very peculiar model sharing model: the first lot of plastic pieces to build a RepRap is donated by someone in the community. This donation will help you get started with your 3D printer (there are several models that people can choose from). In exchange for the donation, when you have your printer up and running you are obliged to do the same. You can also contribute to the community by doing or designing something for them. In my case, I donated and also designed this board. The printer family tree is spectacular almost two years since it began.
The SAV MkI is the first board that has been designed in the RepRap Clone Wars community group and we have launched a crowd funding campaign for it too.
Here you have a few pictures of the board.
The SAV MkI campaign: http://www.indiegogo.com/projects/sav-mki-3d-printer-electronics/x/5040667
Hope you like it.