I'm hoping Chrome innovates on script-sharing... if it were easier to see/edit/share scripts for a page you're visiting, Greasemonkey would become an entirely different product. Also, if GM scripts could expose API's to each other.
I think the most interesting choice would be automatic usage of some scripts, subject to certain criteria (popularity, manual review, etc). It's a problematic idea, but it would have really interesting effects if it were widely used.
Cool. Firefox add-ons in general is the reason why I temporarily used Chrome but went back. The fancy each tab is its own process is cool, but I love Greasemonkey, Delicious, Firebug,Adblock,Flashblock,Noscript...
Basically, by blocking all the offensive scripts to begin with, my browser doesn't crash as often as it probably ought to ;).
With how pervasive JavaScript has become on the web, I find an add-on like NoScript to be onerous. You basically have to allow every web site you visit before it will appear correctly.
FireBug was what was keeping me in FireFox until I started running Webkit nightly builds and saw how great the Inspect tool is.
