Seems like Sony has not only been making it happen on the advertisement side, but now rumors that they will indeed have PS2 titles via the PSN through an emulator sometime next year. This makes total sense, since they have abandon backward compatibility. This rumor comes via minutes from an August 5 meeting between the Sega and Sony Computer Entertainment America. But why is Sega involved? Well, the meeting minutes also included something along the lines of Dreamcast titles coming to the PSN. Hello! Whether or not this is true, we will find out soon. I like to call this one, PS3Dream!
Read the meeting minutes via NeoGaf