One of my favorite tools, Google Desktop, has been updated to version 4.0. New features include “Google Gadgets” (a new name for widgets that can be propped onto your Windows desktop) and tighter Google integration with their video and calendar services.
A new, long overdue feature is the ability to re-index your files manually. The index will also update quicker and more accurately when you move your files.
The full list of features is available HERE.