How can you tell which friends use Facebook mobile?

[jenn_LT]

There use to be a little ad/link on the sidebar that said something like "5 of your friends are using facebook mobile, so should you." But its not there anymore, at least that I can find. How can I tell on facebook which of my friends are using facebook mobile (from their phone)?

[jose javier]

You Can actually go to their Wall in the Info! If they have their cellphone number they are more likely to use facebook on their mobile Phones! If Not then they don't use it!

[Toughpet943]

If you see "Mobile" under someone's post, then that person goes on Facebook by mobile! You can also visit his/her profile and view through his/her posts.

Good luck!