We have been informed that a job listing has been recently added to the Sony Computer Entertainment International careers website. The listing calls for a "PlayStation 3 compatibility feature engineer" with a job role that would require the applicant to "implement and improve an emulator on the PlayStation 3 and next gen systems. Target systems:PS1, PS2, PS3, PSP".
It is our responsibility to point out that this could simply be a Research & Development position for internal testing or for improving compatibility in older PS3s, to improve the number of titles which work with emulated backwards compatibility. With those more sensible ideas out of the way, we can move onto the fun speculation. The juiciest possibility being full backwards compatibility on 40GB PS3s. Not only that, but the inclusion of the PSP in the list of systems lends us to suspect that PSP emulation on the PS3 could be a possibility at some point.
We don't want to get your hopes up and even if our wild speculation is correct, we won't be seeing any of this stuff for a while. There's no telling how long until someone gets the job. The SCEI careers page is still listing a position for a Gran Turismo developer and, until recently, a game engine designer for Afrika. No wonder Sony takes so long to do anything!
[Thanks, Ittousai!]
Curious job listing found on SCEI career website
21

