Hmmm..."Webb" and "Hubble"...I'm having flashbacks... ;)
The Webb does not carry a visual light camera. We will not be able to see what the human eye can see through the Webb's systems.
The Webb is currently scheduled to go up in 2010 or 2011 at the earliest. Hubble will go down years before that. We will almost certainly miss something during that gap. Remember when that comet hit Jupiter?
In August, I noted a left-field idea involving equatorial-launched Soyuz missions to the Hubble. Obviously out there a ways, but maybe something a private organization might be willing to look into. Read my post at
http://www.murdoconline.net/archives/000354.html if interested. It includes a link to the original story.
In related news, the equatorial launch plan made the news the other day at
http://newsfromrussia.com/science/2004/02/05/52145.html .
I understand why NASA can't/won't make another servicing mission, but I believe that the Hubble is too valuable to just let die.