Well, it's not official yet, but there are a number of signs that are strongly suggesting Kaine will be the pick, perhaps announced as early as next week.

- Just released on the NYT website is a pro-Kaine article putting him on the short list:

http://www.nytimes.com/2008/08/14/us/politics/14kaine.html?em

-Earlier today, Obama announced that Bayh and Biden will be speaking on Wend. night at the convention, making their VP prospects doubtful. While this may be some sort of media head-fake, both Markos at Daily Kos and Jerome Armstrong at MyDD think not:

 http://www.dailykos.com/storyonly/2008/8/14/185633/744
http://www.mydd.com/story/2008/8/14/165253/550

- Finally, according to Ambinder and a secretive source, Obama will probably be making an appearance in Virginia next Thursday:

http://marcambinder.theatlantic.com/archives/2008/08/obama_richmond_va_next_thursda.php

I always thought that Webb would have been a great choice, and I'm still trying to get over his decision to withdraw his name, but I see Kaine as a good Virginian replacement!