[citation][nom]damianrobertjones[/nom]Can you daisy-chain? If not then WHAT IS THE POINT OF ANOTHER connector (Thunderbolt) over USB3. Speed! Yeah i know that but then again USB was supposed to be a daisy chain-able connection with lots of devices connected to 'each other' but no oem added the damn port. Same here. History repeats itself and the cycle continues. "Ohh my thunderbolt HD is so muuuchhh better than USB3!" ZzzZzzzz[/citation]
You can daisychain thunderbolt. You can't daisychain USB.
The whole point of having both connectors on the drive is for flexibility (not everyone has Thunderbolt and/or USB3), at the expense of it costing more. Surely the are better alternatives like modular connectors like the Seagate GoFlex line that helps reduce the overall cost of the drive with interchangeble IO.
On another note:
What I wonder is, why have a single drive with the thunderbolt. $200 for 500GB is not SSD, so I can't see you reaching anywhere close to thunderbolts 10GB/s. The real use for external drives with thunderbolt should be raid options like the Lacie little big disk. Multiple hard-drives in raid in thunderbolt enclosure plus daisychanging to monitors etc.