The rumoured deal between Sony and Gaikai will allow PS3 and maybe Vita to play old PlayStation 2 and PlayStation 1 games, GamesIndustry International reports.
Sources say the deal will be for first-party Sony games, but that the service will be open to third-party publishers who want to flog their old games.
It's all going to be announced at E3 during Sony's conference on Monday. That conference takes place from 2am Tuesday morning here in the UK. Eurogamer will be covering it live on both sides of the Atlantic.
Gaikai already has plenty of publisher partners on PC. And Sony obviously believes there's an appetite for PS2 games, because there have been HD Collection re-master releases of games like God of War, Ico and Shadow of the Colossus, Jak and Daxter, and Ratchet and Clank.
The launch fleet of 60GB PlayStation 3s could even natively play PlayStation 2 games. But Sony put an end to that party.
Exactly what the rumoured Gaikai and Sony partnership will entail remains to be seen. It could stretch far beyond PlayStation 3 and into Vita and Sony televisions and tablets.
GamesIndustry International also points out that it could be a tester for a backwards compatibility streaming service on PlayStation 4, which would be tasty like a lollipop.
Eurogamer has a partnership with Gaikai that means you can stream-play some PC games direct from our website! What a world we live in.