I've pledged for one of these suckers and they are running a few months behind on their schedule but the progress has been documented enough. One of the general rules of kickstarter is ETA + 6 months anyway.

These guys are apprently offering blueprints too. "Current plan is to ship official blueprints when the first units ship."... if anybody wants to build their own tiny cab.

I've got a Pi and I'm looking forward to testing this sucker out on PiMAME.

http://www.kickstarter.com/projects/pimoroni/picade-the-arcade-cabinet-kit-for-your-raspberry-p