You may have heard about the Yubikey and how it grants a high strength authentication system that doesn't really require any client software on the computer. Well, the Enano team felt that this was a really great idea, and so the latest revisions in Mercurial will support the new Yubikey plugin, which lets you use a Yubikey for authentication into Enano CMS.
Features of the plugin are:
Support is preliminary (mainly because Enano 1.1.6 isn't finalized for beta release yet), but if you have a Yubikey, try it out!
We also have a page on the Yubico wiki.