Recenty notify app for ubuntu

Install the Recent Notifications applet in Ubuntu

Recent Notifications applet comes with a PPA for Ubuntu Karmic, Lucid and Maverick. Add the PPA and install Recent Notifications using the following commands:

sudo add-apt-repository ppa:jconti/recent-notifications
sudo apt-get update
sudo apt-get install recent-notifications

Ref: http://www.webupd8.org/2011/02/never-miss-notifyosd-notification-with.html