I'm using Skype to phone home at the moment and providing I can actually manage to find some bandwidth in this God, sorry, Allah forsaken place - it works pretty good. Very cheap to phone a normal land-line!
Believe the RR directory would be good for helping out those with problems (new joiners, etc) but would hate to see it replace the written word. Would need to think up some cool username to replace the one (full name) I'm using at the moment.
There arde rumours in the VOIP industry that Skype will be rendered useless in the US and China, US are considering banning it because they can't do a legal intercept to catch johnny islam and his friends. God Bless the Patrioty Act....UK may follow in Georges footsteps....not like we haven't before.