However, it’ll be interesting to see whether or not Google will have to address the double-digit user agent problem which Opera encountered when moving from version 9 to 10. Although browser sniffing is a terrible practice, many sites check the first digit of the browser version. Therefore, Opera 10 was identified as Opera 1 and the site was blocked or downgraded. The issue is unlikely to affect Google to the same extent, but we’ll know more when Chrome 10 is released in a few months.
Firefox has also decided to accelerate its release scheme by publishing a roadmap showing that they will get a double digit user agent around 2012. Microsoft is around the corner too. Probably many old unmaintained sites will break. We are living interesting times.