We've launched Pandora... we had a great preview release and we've been able to take feedback from the thousands of people that have been listening for the last month and improve the service in some pretty substantial ways. I can't wait for you to see the new Pandora -- I hope you'll stop by to check it out.
PS: I just have to say a word of thanks to the hundreds of people that have blogged about us in the past few weeks. It's incredibly gratifying to be let into your thoughts on what we've created. I've been keeping a feed of it all (good, bad, ugly) on del.icio.us. If you're curious about this Pandora thing, don't listen to me, have a look at what others are saying: http://del.icio.us/tconrad/pandora-music.