Salesforce.com Chatter Ideas

“New realtime cloud applications, platforms, and infrastructure offer the path to redefine the future of collaboration. Now in beta, Salesforce Chatter takes the best of Facebook, Twitter, and other social leaders, for instance, and applies it to enterprise collaboration—making people more productive and businesses more competitive”.
We’ve been using Salesforce.com Chatter internally for about a month now; it already feels like a cool, useful tool, but what can we do to make it even better?
Personally I believe Chatter needs (in order of importance):
- Re-Tweet style functionality, to allow folks with low visibility to be seen and make it easier to spread good ideas virally across the network;
- Support for @usernames, to address Chats to specific people;
- A dedicated page with auto refresh, making it not dependent on manual updates or email notifications;
- “Like” button;
- Rich follow email alerts, ala Topify;
- Embed video inline in a Chat, with support for Youtube and Vimeo.
Vote the ideas you like, and share your thoughts (and IdeasExchange links) in the comments!