Yahoo! opened up the beta of Live, its new personal broadcast video service, on Thursday night. I haven't yet run a live test of the Christine channel, but I'm looking forward to trying it out after a day on the Tahoe slopes today. I'm a huge fan of Seesmic's conversational video community, so I'm happy to see that Yahoo! appears to be going for a broadcast approach rather than competing directly. (Essentially, Yahoo! is providing Justin.tv in a box.) Go ahead and get your own name before someone else nabs it.