Really? Browser usage metrics after 24 hours? While this might have been interesting if they did it, say, a week from now, this kind of data is practically worthless.
I'm sure they will, but 24 hours after a decently-publicized launch is a good starting point. I'd be more concerned with how the measurements were taken, because hitting the page to see how it looks or to bookmark it doesn't really qualify as 'using' I'd say.