Sony wants to archive every important PlayStation game in the cloud – but it's going to take a little while for it to get there. PlayStation Now, the platform holder's ambitious cloud streaming service, currently provides access to a pretty impressive pool of PlayStation 3 titles, but many have been pondering when PSone and PS2 releases will join the party.

"There are some amazing games for the PSone and PS2, and our longer term vision is to go back further into the PlayStation generational library and offer those with PlayStation Now," director of marketing Peter Jamshidi wrote on the PlayStation Blog. "Right now, however, we are focused on bringing to users experiences from the amazing PS3 library."

As long as it's able to keep the service's recently announced subscription fee the same, the Japanese giant's streaming platform should increase in value over time. The biggest challenge that it's going to face, however, is licensing; many retro releases have yet to even hit the PlayStation Store, so the odds of them joining the PlayStation Now catalogue are low.

[via blog.us.playstation.com, gamespot.com]