The most popular site on mobile is …?

Facebook. No surprises there really, but that’s according to Opera based on stats from their mini browser. It is unlikely to account for many (or even any) iphone users though, but it’s a good stab at estimating the size. The largest growing site for mobile in 2009? Twitter. Again not much of a revelation. However, it does look like Google has some catching up to do in the mobile space.