That was fast,
first bugs are being found in the Google Chrome Browser that was released yesterday. This one here crashes the browser if it tries to access a specially crafted url (undefined handler followed by certain character). PoC and details can be found at
http://evilfingers.com/advisory/google_chrome_poc.php

Since it “only” crashes the browser, the only use that comes to mind would be to use it to filter out google browser users from websites by crashing them.