ModBook Pro

This looks interesting if it's true. Wonder what the cost will be, pricing isn't available yet.

Link from the article http://www.modbook.com/

Isn't there another company that's been doing that for a while now? Maybe I'm thinking it's them...

Yes there is, I forgot about that. There was a conversion kit. The link on that page for Axiotron goes to the Modbook website now.

The link mentions OWC sold them. Searching OWC now only brings up accessories for it. Seems they don't sell the kit anymore.

http://eshop.macsales.com/search/modbook/

Ahhh.. yes.. that's it.
Your web-fu is undeniable.