Ubuntu still uses the Nautilus file browser. Which is one of the best, mind you.

Ubuntu 9.10 uses GNOME 2.28.1

Ubuntu has a nice selection of games by default too.

Like most other Linux distros, Ubuntu 9.10 includes the OpenOffice suite of office apps.

A new feature in 9.10 is the Software Center, which allows you to easily install new packages and software.
Of course Ubuntu still includes Synaptic.