Zune Services Down for Maintenance on Monday
"The Zune service (Zune Pass, Zune Marketplace, Zune.net streaming and Zune video on Xbox LIVE) will be unavailable due to scheduled maintenance. The Zune service will be offline for up to 24 hours starting at 10:00 p.m. PST on Monday, January 25. As with previous service updates, we recommend you download any new music, video rentals or purchases and sync Zune Pass content prior to the downtime. Content that is stored on your PC or Xbox 360 HDD will remain available during the downtime."
Just like the post above says, the Zune.net services will be down for a while. This is a maintenance update; no new features are going to be rolling out with this release.