It is really clear to me that they can't talk about display resolution etc. because they've yet to nail down a supplier for the display, and I suspect they don't want to reveal anything that might give suppliers a chance to raise the price on the component ("you promised this resolution," the supplier says, "And if you want to keep your promise, you'll have to buy this component, which is now 50% more expensive!")

The thing that puzzles me is how coy they're being about a keyboard option for the device.

Does this mean that they've got a keyboard other half, but they want to keep that as a surprise? Or does it mean that they don't have one, they're not going to make one, and they're expecting the community to make one?