A usable Shelf release
Right, Shelf has now reached version 0.0.6 - download it (there are newer versions out now - get those). It's good enough that I'm running it full time now. Thanks to Mark Fowler, it can now pull clues from Firefox, which is a relief. I've also added Address Book and iChat support, although the iChat stuff is a little hokey - it assumes you're not using tabbed chats, and that you speak English. Sorry. The iChat AppleScript dictionary is lousy.
Musings
It's been suggested that I could work out twitter feed and Flickr photostream URLs about people based on their name / nick / email. I'm currently shying away from deriving too many things about a person magically. For instance, I could work out (and cache, obviously) a Flickr username for a person from their email address. Quite apart from the horrible privacy implications of sending the email addresses of everyone you read mail from to Flickr, I just don't like the approach. I'd much rather encourage a rich address book with lots of data in it. This has the side-effect that Shelf will also recognise my Flickr page as belonging to me.