We are just under one week away from the Around the World in 80 Telescopes event. You should be able to watch the webcast on the 100 Hours of Astronomy website, or on their channel on Ustream.tv. You can also keep up with the event on twitter.
If you have a question you want answered during Palomar's segment, you can leave it here in the comments to this post or email me firstname.lastname@example.org
The National Science Foundation has a story on the event that gives Palomar a nice mention and has some good photos too.