Lance crashed out on the first day of the Castilla Y Leon. Word from Johan is that it's a "clean collarbone fracture with no complications." Rae, you asked about his plans for the Giro. My guess is he'll be out of commission for 4-6 weeks which may indeed throw a wrench into his plans for Italy in May.
According to Velo News, "Astana teammate Tomas Vaitkus, who also went down in the pile-up, approached Armstrong, but he waved him off. Vaitkus remounted his bike and continued in the race."
Lance is such a class act. Here's hoping he gets better real soon!
Update: Video of the crash.