Whatever happened to the Calibre project?

It seems that there are a few gems that are remnants of the project (gem 
search --remote calibre), but I can't locate a related Web site.

There doesn't even appear to be a project for it on RubyForge anymore:

http://calibre.rubyforge.com

Has it been renamed?

--
John Long
http://wiseheartdesign.com
http://radiantcms.org