Logical (for the PS3 as a Blu-Ray player)
I like the idea, though the PS3 seems an odd place to shoe-in this technology.
As smartphones become the norm, the demand for interoperability with household electronics and appliances should be rising. I have thought multiple times, "if only the iPhone had infrared I/O..." The possibilities!*
Better yet -- start manufacturing TVs, stereo equipment, etc with WLAN capabilities. You'd never need a device specific remote control again -- just install an application on your phone (or a WiFi device with full OS, like an iPod Touch).
-----------------------------------------
* ...well, if Apple actually encouraged open development. Screw the iPhone -- I suspect the Android platform will take hold and become a dominant mobile-device OS because of their openness to developers. And once again, Apple will lose market share because of their closed-system approach, just as all the software dev types flocked to Microsoft's more open model when I was yet a wee tot.