I agree theres no proof, however we would be naive to believe it isnt something they havent looked into or are nato considering introducing.
The extra revenue stream would give them a much needed cash injection, which could be put to good use improving things.
But every day sony dont announce officially that there will be a premium service is good news.
They could easily add a premium service with exclusive gold member only DLC for games,
Currently, pretty much the only thing PSN really has going for it over LIVE is that it's free. If that's taken away then thats a selling point lost. F