They've learned nothing from Steve Jobs, the master of hype. Don't announce something if you don't have it, at least an evaluation version.
On the 27th Jobs is likely to announce a tablet Mac, he will have it on stage and it will be available in the next week or two. Once you have created the need you have to fill it right away.
Of course the Mac tablet will likely cost less and be far more powerful than the X1000...