I don't have an answer to this, it's too early (we don't even have a screenshot of it). But I strongly suggest to take a look a the Google Chrome Comic Book: a very new, fresh, funny and precise (!!!) way to introduce an incoming software.
They discuss a lot of different topics:
- Problems they wanted to solve
Very interesting. And, again, very innovative.
Ah, the Rendering Engine they chosen is... WebKit (what a surprise!!! ;-) ) and... it's fully open source.
An early leaked screenshot follows. <!--more-->