Greg, is there any page in the openSUSE Wiki documenting Tumbleweed? If not yet, I suggest to start with one...
Coincidentally, Zonker and another journalist was also asking about a wiki page roughly in the same time as your mail :) So, I went ahead and created the page:
Please make changes to the page as needed. Is it a good idea to link this page from http://software.opensuse.org ?
From the wiki styling guidelines, I believe it is better to create the
Tumbleweed wiki page in the top-level instead of under something else like "Portal:" . Please change the url if it is wrong. I am not able to connect to IRC now and so sorry about not discussing with the wiki team in advance, before creating a new page, if the suffix is wrong.