Holy crap... Will Gadd and Tim Emmett climb a WI 10 (thats Water Ice 10) route! I don't think I've ever heard of anything harder than WI 7, and I've only heard of a few of those. Crazy!
Check it out:
http://www.climbing.com/news/hotflashes/worlds_first_water-ice_10/
http://gravsports.blogspot.com/2010/01/spray-on.html
It's interesting because in my experience, the grade goes up not only as the ice gets steeper, but also as the ice gets worse/harder to protect. This route is entirely bolted, but it's clearly harder/steeper than WI 7. Time for a new ice rating system with separate ratings for steepness and protectability? Anyway props to these guys!