Two awesome new features that the Ubuntu Software Center recently got in Lucid:
* Featured Category – there is a special top-level category for highly recommended applications that we don’t have room for on the disc. This includes the GIMP and Abiword right now. We will add more throughout the release cycle.
* Personal Package Archives – PPAs are now visible inside the software center. This is another step closer to making opportunistic development rocking in Ubuntu.
Source From here