This seems to be a very poor substitute for a VM + changing the display settings. Includes tiny resolutions, difficult to read and doesn't work with local copies.
Not just that - Google.com stats..
They would have to be some of the most valuable stats in terms of getting an unbiased sample of the general population.
Well, yes and no. Unclear what countries, languages, etc. they are including in here. Your site's audience may in fact not represent the general population, so you could be optimizing for the wrong group.
It would be helpful to be able to see these %age borders for just US surfers, for example, or from US daytime usage vs. nightime, or even IPs resolving to corporate vs. non corporate (poor attempt at separating at work from at home usage). This way you could optimize for your intended audience instead of the general populace, few of whom might be your paying customers.
