The Spring Update for Xbox 360 owners, which adds compatibility with Windows Live Messenger and is also intended to tighten up Marketplace regional controls, can now be downloaded via Xbox Live.
Other features that have been added include more detailed achievement pop-ups, enhanced family settings for video and voice chat, and faster access to demos in the auto-downloads section.
"This summer" Microsoft will also be releasing a QWERTY keyboard text-input device, a mini-keyboard that connects directly to an Xbox 360 controller so that users can type messages.
For more information on the Spring Update, please see GameSpot's full tour of the Xbox 360 Spring Update.