Guillermo Esteves has notified me that another site has added microformats under the hood — and, just like Apple’s dotMac Webmail, for password-protected content.
They don’t mention it, but this means that you can easily add concert listings on Last.fm, complete with recommended gigs to your calendar without breaking a sweat (or a finger).
They let you add gigs, but what’s missing is the ability to point at an Upcoming, Eventful or Yahoo! Local URL and pull in the microformatted content to create a subscription to the existing event.
Ya dig?
Factory Joe 
i dig, dude. this is kinda what we rapped about a few months ago, no?
It is, it is. And the hits just keep on comin’!
Think it’s such a cool feature – especially if you’re listening to a lot of local music. Integration with these event services would be ideal. If you were able to use upcoming/eventful as a repository and suck the data back to Last.fm and other sites and services set up to do that. I’ve been trying to figure out if something like that is possible with Drupal.