No. Sony did develop a tech. It's just not looking like they are gong to use it.
I'm going to cut and paste something I wrote in the original post this quote came from because it got buried and it isn't me talking out of my ass, it's me talking about things I've heard from the same people that told me (which i then posted here) the entire ps4 reveal first party line up.
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I think people are overblowing that this is pressure from outside publishers. Im sure they want it... but the reason these things were ever investigated in the first place was because it would make Sony and MS more money. Not because they wanted to please their partners. That's just a nice bit of gravy on top.
Honestly though, I don't think either are going to happen. Im fairly certain that Sony has dropped their plans based on a few folks I've talked to. And even though I don't really like microsoft... they aren't stupid... they have plenty of time to roll this back. They already have been if you compare how restrictive the policy sounded on day one and what it sounds like now (with the inclusion of "we will have more to say later"). Basically the outrage is making everyone take another look at these things and see if its worthwhile. And I know a lot of people around here think that publishers are strong arming them into this... but as I explained above, they aren't, these are initiatives by sony and MS to make money for Sony and MS. If they feel like the consumer outrage will cut into their profits more than used games will... used games will be just like they were last gen. And that's what I expect to ultimately happen.
And this flies in the face all of the people saying "CALM DOWN, WAIT FOR E3!!!" The lesson here is not to calm down, it's too tell these companies you don't like what they are doing. Which means take off your fanboy hat for a second and join in letting whatever company you have a preference for know you aren't happy. If everyone was quiet after the MS reveal I can guarantee that both companies would be full steam ahead with restrictive policies. Hell, they would possibly be making them more restrictive.