My worry is Apple will never allow a Bluetooth controller, as they will, correction, Steve Jobs will view this as admitting a fail.
They want the touchscreen to be THE THING.
Saying, her is a Bluetooth controller you can use, Steve is going to see as admitting, well, a touchscreen is not perfect for everything.
That's the problem I see, whilst Steve is around, he would block the very notion of such a product.
I would like to be proven wrong though.
Come on Piggie, you're smarter than this.
Apple has always made improvements, alterations, advances in their products. If they were worried that something new would be 'admitting a fail' then there would only ever have been one generation of one product, ever.
They also don't say a touchscreen is perfect for everything, because they've already offered a BT keyb, and offer other products with other input schemae.
You could flip it around and say that Apple is
already saying that the iPad and touchscreen isn't perfect for everything, such as controller-input games, which is why they don't bother offering it.
My read of the situation is that, on the balance, the investment in opening up BT to multiple types of device is not worth the benefit at the moment. There would be legacy issues down the road, unintended consequences, compatibility issues, consumer confusion about how the intent of the device, etc. Those who really need a different interface are already working with other products, Apple or otherwise.
So: Never say never but not for while; and it's more to do with their business plan and less with obstinacy.
EDIT: Whoa, who brought this thread back from nowhere? Drat.