I’ve just come across dash.
(free in mac app store : http://itunes.apple.com/us/app/dash-docs-snippets/id458034879?mt=12)
And I thought you might like it.
It’s a snippet manager and an API documentation browser for Mac Os X.
Access to documentation is really fast ;-) (a nice improvement from integrated documentation browser inside XCode.)
Snippets can be created and shared (via a dropbox folder) inside a team.
(They will appear as search results)
Here is what it looks like :