i wish friends list worked(for me). i get on the phone with someone, we both add each other to friends list. 5 minutes later i receive an invitation, and even after that we still can't talk. just failed to connect now. this is the only thing that annoys me about steam.
so far ive added ek901 and requieminadream to the list..more to come soon
wish there was a way you could categorize your friends list
and yes its working