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That article is from April 2010.

Quite often once stuff is patented it still takes a while to reach the market.

I do love the comments on the bottom of that page though

Bo Williams said...
[Apple] would not get rid of their 30 pin connector for the ipod for a standard usb 3. They would not change display connectors yet again. Not likely.
 
It could be feasible. With thunderbolt, you don't quite need to keep all the drives in the tower.
 
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