Interestingly, our other sibling site, CrackBerry.com pointed out that RIM's still-in-beta browser, Torch on BlackBerry 10, pulls off a staggering 447 points plus 10 bonus points. So the bar for everyone is clearly still being raised.
Given Jelly Bean wasn't even used yet, and Windows Phone 8, BlackBerry 10, and iOS 6 are all still in beta, none of this means too much yet. Other than, you know, geeks love numbers.
We'll keep having fun running the tests though. Because, again, geeks love numbers!