The PlayStation Twitter will notify when the maintenance is complete. Of course, by that time, many of us will be in bed -- ready for dreamland, having just finished our milk and fresh-baked cookies.
During the maintenance, users won't have access to:
- PlayStation Store on PS3, PSP, and Media Go.
- PlayStation Network Account Management.
- PlayStation Network Account Registration.
- PlayStation Home
- Music Unlimited & Video Unlimited services
- Signing into us.playstation.com