Sony will not include revmote-like technology within the PS3.
The system is going to be expensive enough to manufacture, and adding motion sensing technology into the PS3 controller, will only make the system even more expensive to either Sony or the consumer.
Remember, this motion sensing tech is pricey, and it needs sensors within the controller, actual PS3 system, and an external sensor to be placed on top of the television. Sorry, but Sony have enough to worry about then having to sort out another headache as this will be if it were to happen.
I think also with the Immersion lawsuit, Sony may be a little rattled at the though of a potential lawsuit from Nintendo, so that may be another reason why Sony will not go with this path as some are expecting.
What I do think though is Sony will expand Eye-Toy into a 'virtual reality' like device, and a revmote controller packed in with an eye-toy could likely happen.