Vancouver OpenID Mashpit

I wasn't going to go, but at the last minute I decided that attending the Vancouver OpenID 2.0 Mashpit would give me the opportunity to see Sxip's downtown Vancouver office and also run into people I knew, not to mention meet some others and learn a little about digital identity. (I was rewarded with a free hotdog and snacks. And a t-shirt.) I need to know this stuff, at the very least cursorily, so that I can support it when the time comes.