Update: It looks like the Marketplace is back up and running. I have full Marketplace service on my At&t Samsung Focus.
“Can’t get to this info right now. Check back in a little while.”
Many are reporting that this outage is worldwide and apparently only effects Windows Phones with NoDo. Zune Pass is also confirmed to be down as well, so it may be an issue with a server.
Microsoft is aware of the outage and has not yet commented on it, so stay tuned and I’ll update if anything new comes about.