Seagate announces 1TB SAS [update]

Source: Seagate

Until now SAS drives were severely limited in capacity. It was not possible to exceed 300 GB In exchange, it was enabled very fast disks, spinning at 15000 RPM.
Seagate has announced a new range of products with SAS capabilities identical to their SATA products. The Barracuda ES.2 will be offered in 500 and 750 as well as 1 GB TB
On the other hand, no more 15000 RPM. These discs run at only 7200 rpm, the same as their SATA counterparts.
They bring the theoretical advantage of being more efficient, 135% compared to SATA model, and can be guaranteed for 24/7 operation.
They could attract those who have bought the Mac Pro with a RAID card and volumes already using fast SAS. This would be a significant increase in disk storage space.
[update]
Seagate has also added the following for servers and storage arrays.

Details about the Cheetah 15K.6 FDE Family of Hard Drives
Available in capacities of 450GB, 300GB, and 147GB, the Cheetah 15K.6 family includes Seagate PowerTrim™ technology which dynamically optimizes drive power consumption at all levels of activity. The Cheetah 15K.6 FDE family offers the highest 3.5-inch hard drive reliability in the industry at 1.6 million hours MTBF (0.55% AFR), a choice of Serial Attached SCSI (SAS) or Fibre Channel (FC) interfaces, and a five-year limited warranty.