Update: VG247.com has confirmed that Kaz Hirai stated the current PSN service will remain free, and subscriptions are only for “premium content and services.”
Sony has revealed during their Media/Investor Conference that the PlayStation Network will be getting a new paid subscription service in 2010 alongside non-game content likely to include applications and videos.
According to their Slide Presentation [PDF] a "new revenue stream from subscription" will be generated.
Although few other details exist at this time, the way it is worded sounds like it could possibly be a subscription similar to XBox live on its way to PSN.
To quote: "It is unclear what the new revenue stream subscription might be. Could it be similar to Qore, an optional service, or something more akin to Xbox Live Gold, which is a premium service required to play games online for the Xbox 360?"
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