Awesom-home writes: Playstation Home is temporarily down for emergency maintenance. Why? To fix the Motorstorm Sphere glitches says the Community Team leader on the Sony Playstation forums.
Let's hope they fix the presentation podium as well, most people had freezing problems on that new cannon mini-game.
Updates:
On the European Playstation forums, a representative says they are fixing the mini-game of the Presentation Podium as well.
UPDATE: Home is up again! Freezing issue resolved in the Presentation Podium, Motorstorm Sphere glitches fixed and the Theatre has been updated
