Ha! I just logged in to post the same link as Enraged ShapeOko just released a batch of the routers and they sold out in under 2 hours. He plans on doing another batch if this one goes smooth.
It's tough to go bigger than that due to flex of the extrusion. I think the limit is a 20"x20" working area with the shapeokyo type system. There was talk of a beefier excursion rail in the future so larger scale machines could be done