None for Mac

That's strange because when you view the datails on the Who's Online page it reads "AppleWebKit 525.13 / Chrome 0.2.149.29 / Safari 525.13".
This is not the only strange thing. I noticed that some Webkit specific features such as the
CSS text-shadows are not working in Chrome, while Safari shows them without any problem and on every platform (Mac/Windows/iPhone).