Today I found out about a great Gnome application while reading Russell Beattie. The application is called Gnome-Do and it works like the famed OS X launcher called Quicksilver. I have never used a Mac or Quicksilver but what I had seen before seemed like a very useful application.
Gnome-Do works very well as well. It has the default keyboard short cut super (windows key)+spacebar and has a lot of features. Although it is a mono application, it works pretty well and I think it is a keeper.
Below is a video that shows it in action. Check out the Download page for the repositories.

Thanks for sharing.