When I added a friend to one of my group sets, they could not read the old messages I posted to that group before she was added. I had to forward her the old posts. It would be great if group members can see old group posts no matter when members are added to a group.
I want to set up my team on Pownce to share info/IM/etc... but hate that anytime someone new starts (we're hiring 100 people in the next 2 years) everyone has to manually add the new people to their personal lists. How about making a way for people to create a 'group' that then can be subscribed to by everyone on the list? Then, when we need to add (or remove) someone, we do it once and everyone gets the updated list and can start communicating with them immediately.