Ah in that case, I won't be getting a terabyte drive
I'm running 2 500GB's in RAID 1 and thats how I always will run now. I've had far too many drives fail on me in the past to trust any.
How some people run RAID 0, and feel safe, I don't know.
But yeah, less platters will effectively be faster, and also, the drive may last longer, as its got less moving parts for it to go wrong.
1024TB drives? OMG...
No one would need a drive any more. Would they even release one that size if they could?