Expanded Functionality for “Latest Activity” in Dashboard

I would like to see the expanded functionality of the “Latest Activity” in the dashboard. It would be nice to be able to show the current users, activity for multi user sites. Also a an option to “subscribe” by category to view the latest activity among user selected categories.

Adding functionality much like the “profile” space here at www.remarpro.com

This type of feature would be extremely appreciated and beneficial to multi user sites running wordpress.

Any thoughts?