Bryan, My apologies for the misleading info. My sense from the website (and from my conversations with Moodlerooms) was that ELIS and Joule were not available for download and could not be self-hosted. I'm glad to see that at least one of those will be publicly available soon.
As for the commercial offering similar to Blackboard, Elis may not fit the bill, but Joule currently does (at this time). It's my understanding that it's only available through Moodlerooms and cannot be self-hosted (which is pretty similar to Blackboard's hosting model; licenses and underlying business plan aside).