Osmosoft is a small team of techies, contributing to a number of open source projects, particularly TiddlyWiki.
Periodically we hold open house, where fellow technologically creative and curious people are invited for a spot of informal knowledge sharing, technology exploration, ad-hoc collaboration, to have fun, build things, learn things, and meet new people.
For this particular event we hoped to be joined by Microformats wiz Brian Suda, as well as super cool members of the Web21C SDK team in the Haymarket Room, on the 2nd floor, and will no doubt adjourn to the Exchange Bar in Chinatown afterwards.
We published this on the site at http://osmosoft.com/ a while ago, but were slow to get up here on Upcoming. We'll try and do better for future events.