They closed down all Apple Store to remove all traces of this information, but such Mac Pro model is expected to be released from weeks, and it is now probably only a matter of hours or days.
If you want to know what to expect about such 8 Cores-based Mac Pro, you can read our previous articles describing the procedure to upgrade current Mac Pro with the Xeon 5355 and how such raw power translate into performance gains.
In summary, if Apple-branded audio and video applications are not modified to take advantage of such power, the investment might be too expensive, except if you are used to work with simultaneous multitasking.
[update]: It seems that we might have to wait for another week, next Tuesday maybe.
