after this maintainance there is a way to deactivate ps3 and psp systems via pc. Note that you can only deactivate all via pc once every 6 months via pc so be careful.
To do this,
Go to http://store.playstation.com/login.gvm and click on Manage Account
This will take you to the Sony Entertainment Network Account Page
Log in and click on account at the top
Now click on Devices and media and then click on the down arrow on game and click deactivate all
Read the message carefully and click OK
All PS3 and PSP devices for Game are now deactivated
Now run over to your PS3 or PSP and activate for game as normal
thread copier lol, you forgot to tell them you can deactivate all devices once every 6 months.
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Sony are stabbing their loyal family customers in the back - We have 3 PS3s and 3 PSPs all on the same IP address and all registered with Sony. Why can't we use them at the same time anymore?