Went to the UML2003 conference. Held a presentation about difference calculation between two models, and taking the union of several changes done to a base model. The conference was nice, with the panel discussions and invited speakers being the most interesting.
San Francisco was an interesting city as well. Hills up and down, looong streets, neatly laid out in a grid. Weird how the setting changed so quickly. First you're in the tourist area, then in the "better" apartment areas, then Chinatown, Financial centre, shopping centre, and suddenly in some less appealing places. And people were extremely nice, which surprised me. Several people just nodded to me and greeted in passing, which would never happen here (.fi).