Do you know this for sure?
If it CAN shift up and down, it still needs something to MAKE it shift up and down. If USB sockets had a bevelled tongue, I could see it working. But they don't. So I really can't see how it is supposed to be reversible. Unless... They rely on gravity... And therefore can only be used in horizontally aligned USB sockets...
Anyways, I do hope the next set of iOS devices support USB 3 speeds. Considering the storage size and processing speed of modern iOS devices, and the popularity of SSD-equipped computers, not supporting USB3 speeds seems insane.
how about a thunderbolt cable?