Recent Notifications is a GNOME panel applet that displays a history of recent NotifyOSD notifications. We've covered it before so check out our previous posts for more info.
Well, since you can't use GNOME applets in Ubuntu 11.04, the applet is available as an AppIndicator (for a while now but I've missed the update). But there's some bad news: in the GNOME applet to AppIndicator transition, "Recent Notifications" lost some features, most importantly: the option to blacklist applications from showing up in the recent notifications history.
"Recent Notifications" Indicator is still under development so I'm hoping it will get this feature back soon. There's some good news too: it seems a GNOME 3 version is on the way.
To install "Recent Notifications" Indicator in Ubuntu, use the commands below:
sudo add-apt-repository ppa:jconti/recent-notifications sudo apt-get update sudo apt-get install indicator-notifications
Once installed, it will automatically start after you log out and log back in or restart Unity (press ALT + F2 and enter "unity").
"Recent Notifications" is available for older Ubuntu versions too, tough not as an AppIndicator but as a GNOME Panel applet. And using it, you'll get the blacklist feature - to install it, add the same PPA as above and then run the command below:
sudo apt-get install recent-notifications
Report any bugs you may find @ Launchpad.