does power nap feature work on MBA late 2010?

In the settings on my late 2010 MBA I have an option to enable/disable power nap.

On the power nap support site, however, my MBA isn't among the supported machines. Is it a bug in the settings or can I maybe only use particular power nap features?

and why the **** does it work to create a question here on the apple forums on firefox but not on safari 6 -.- unreliable as ever

anyway, thanks!