even as a regular consumer, i dont see how a company can validate keeping the regular controller around along with the new rumbling one. for one, it's probably going to be the one that everyone is going to want. also, it'll probably cost more money to keep producing both versions.
any word on whether this will become standard on later PS3 SKUs? If this is a sideshow accessory, I fear force feedback will not come back as a standard for PS3 games.
The DS3 is confirmed to be at least in the MGS4 SKU, but I suppose that it will indeed become standard.