Nothing seems firm, but it seems they're talking about things with devs/publishers:
http://www.gamesindustry.biz/content_page.php?aid=15294
More at the link.
http://www.gamesindustry.biz/content_page.php?aid=15294
Several senior developers have confirmed to GamesIndustry.biz that they have spoken informally with Sony about the question of digital distribution on consoles, although these discussions were described as being "purely about technology, not business models" by one source.
However, even the technology discussed could be very revealing regarding the Japanese giant's plans for the coming years - with one source from the development arm of a major third-party publisher claiming that Sony has been discussing the technical feasibility of providing PSone and PS2 titles over digital distribution with them.
More at the link.