Steam Set To Improve Download Speeds

This means quicker download times and less time waiting for the steam servers to stop being "Busy"

The new system also updates files by checking old files against new files and then only downloading new ones, decreasing the size of updates significantly.

Joystiq says: "Valve has written new tools for developers and publishers to simplify their behind-the-scenes processes and ship products faster, promising that publisher-side updates will also be streamlined"