I'd be VERY keen if they released a tablet like that running Mac OSX, however this, being a 'i' device, runs the same OS on the ipod touch/iphone etc.. whilst its good, it is still somewhat limited... and the pricing seems pretty extreme given the tiny storage space too...
If they had something running OSX with a 500gb hdd in it, I'd be all over it like flies to a dung heap... how cool would that look attached to your mount running cameras/guiding/mount control...

oh yes...