A lot of clips are coming out now.
Here is a particular treat:
http://www.youtube.com/watch?v=3G_JTMuHOQk
They kicked it off with Good Times Bad Times:
http://www.youtube.com/watch?v=rsHcUwtw5H0
Edit: One of my personal favorite Zeppelin songs (just a portion) Since I've Been Loving You:
http://www.youtube.com/watch?v=EunajGvY8-Q
Page has also expressed interest in touring, although Plant has denied it (which he has since 1980).