The Miniguru was started as a mod over at the geekhack.org forums. It got some momentum there and this preview site is where we are now. One of the reasons for the preview site is to see if this momentum will hold with a broader audience.
The configurator on the preview site also introduces the concept of distributed on-demand assembly for keyboards. Something that could be done with PowerPoint but, well, that would be no fun!
As there are many unknown factors yet, the launch date at the top of the site is a rough estimate. It’s probably a bit on the optimistic side too.
Good luck on finding that ultimate color combination. ;-)