Have you gotten an official email from them yet? I still haven't heard anything back from Stanford and I know they were letting people know late last week (albeit informally). Have they followed up phone calls with official emails from the program or are you guys still waiting for that?
I just heard from UCLA that I got an interview for the Feb 4-5 weekend. They didn't give me any alternate dates but they might have another interview weekend.
Interviews: UCSD, TSRI (La Jolla), UCLA
Rejections: Caltech
Still waiting: Stanford, CU Boulder