PandaBot crew seems to have their 3d printer ready for crowd-funding and production. It looks like their main feature is automatic alignment and calibration of the extruder based on its position to print surface.
http://www.kickstarter.com/projects/pandarobotics/pandabot-a-friendly-affordable-3d-printer
http://www.kickstarter.com/projects/pandarobotics/pandabot-a-friendly-affordable-3d-printer