I got this email.
Thank you for using Personal Space as the way for sharing your photos and videos privately with your family and friends.
We're very excited to announce that as part of a service update, from April 25, 2012, Personal Space will be re-named PlayMemories Online and will only be accessible through the Sony Entertainment Network. As part of this change, you will be given 5 GB of storage space.
Your current photos and videos in Personal Space will be made available through PlayMemories Online automatically.
PlayMemories Online uses the same login credentials as Sony Entertainment Network so you will need to use your Sony Entertainment Network Sign-in ID and Password to access your PlayMemories Online account.
*The Personal Space service will be temporarily unavailable prior to launch of PlayMemories Online.
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If you have any questions, please call 1-877-428-5608 to speak with a customer support representative (hours: Monday - Friday, 9am to 10pm ET).