Does "USB 3.0" with a transfer rate of 10 times are not as fast as expected?

Before GIGAZINE "USB 2.0" will be 10 times fasterThe specification of "USB 3.0" has been officially decided, But it became clear that there is a possibility that "USB 3.0" will not be as fast as expected.

Apparently it seems to be a problem of the connected device rather than the problem of USB 3.0 itself.

Details are as follows.
TG Daily - CES 2009: USB 3.0 slower than expected

According to this article, when "USB 2.0", which was supposed to realize a data transfer rate of 480 Mbps at the maximum, first appeared, only 250 Mbps appeared due to technical barriers. In addition, it took several years to achieve a transfer rate close to 480 Mbps after the technology was innovated in practice.

And the representative of the nonprofit "USB Implementers Forum" founded by a group of companies that developed USB specifications is said to realize a maximum transfer rate of 4.8 Gbps at the world's largest home appliance trade fair "CES" held in the USA It said that "USB 3.0" that it is said that it will follow a similar path to achieve a transfer rate close to 4.8 Gbps.

Also, prototypes of external HDDs adopting USB 3.0 in CES were exhibited, but the reading speed was 1.32 Gbps and the writing speed was 1 Gbps.

By the way, there is still time before the product that adopted USB3.0 actually appears, so it is expected that the transfer speed will improve somewhat when the product corresponding to USB3.0 appears, but at the present moment Considering that the lineup of SSD which realized 150 MB / sec (1.2 Gbps) reading / writing speed is very small, it seems that it will not be long before devices that make full use of the maximum transfer rate of USB 3.0 appear.