http://support.xbox.com/en-US/xbox-live-status
XBOX LIVE Marketplace
Users may experience difficulties with the following services:
- Downloading applications from the Windows Phone Marketplace
Affecting the following LIVE Platforms:
- Windows Phone
7/13/2013 12:15:17 PM PDT:
Are you trying to download content on the Windows Phone Marketplace when suddenly instead of getting what you want you get an error code? That's not cool. We're working to find a fix as soon as possible. As always, we appreciate your patience and will update you every half-hour.