Reading about Google Wave today as I wait impatiently for my invite. It better come.
I was reading the latest (I think) developer blog update and near the end is this gem:
"We're also working on larger changes like providing anonymous read-only access to embedded waves -- so anyone in the world will be able to see content of published waves."
I know this was a "want" for me...but wow...
Once this gets enabled you'll have a forum software killer.
Build a widget that shows "followers" and Twitter is dead. After all, that's a large part of Twitter's success. Showing how big your....follower group is is very important.
Facebook features are just a hop skip and a jump away. You can be sure there will be many developers working on that.
Pretty exciting stuff!