OK, some more general feedback...
1. It would be useful I think to see whom has looked at a) your Tradespace site, Apps Marketplace site or just general profile. This gives the read an opportunity to a) seem whom is interested in them/their services but b) profile potential clients to the extent of being able to then go back to them with a message 'thanks for looking at my " "....we hope you found it useful, etc etc.....
2. When I click on 'mark as read' for messages in the communities or 'my messages'...nothing seems to happen...therefore please either make it more obvious or remove this irrelevant function.
3. Same goes for 'mark all as read' in discussion area...nothing seems to happen! Grrr.....