The Xbox spring system update will be delivered to "a few" Xbox Live members this week, according to a tweet from Major Nelson
. The update will be deployed to all members next week. Before you go rushing to check your Xbox, don't get too excited: Major Nelson noted further
that the update will only add "behind the scenes improvements and prep for future enhancements."
Presumably, he's referring to things like Xbox Music
, which Microsoft unveiled at E3, and more video apps.