They are reserving this as a PSN+ perk for paying for access to Gaikai... maybe even an add-on to a basic PSN+ service.
Gaikai is going to be Sony's Backwards compatibility feature going forward. If you pay for that service, you get BC and/or access to many other older titles. Basically BC plus VC all in one.
This allows them to add value to the service for loyalists as well as not have to worry about any special hardware in future consoles.
This is where Nintendo was held back. They wanted BC inherent in WiiU to Wii. Therefore they had to once again build off of the existing tech vs fully changing.
Considering how efficient and the MCM design of WiiU, expect next Nintendo console to deviate from the same architecture and then just have a secondary tiny WiiU MCM somewhere on the console.
Personally, I prefer Nintendo's approach with Wii U. Slight disconnect with Wii Mode and the ability to upgrade VC for very small fee. Though in the end, this approach will allow future Playstation consoles to immediately have a very large library where Nintendo will have to continuously retool specific games to run on new hardware.







