Lately there have been a lot of complaints around Apple's Macbook Pro concerning the performance of SATA hard drives.
It would seem that Apple slipped on their firmware, capping the speeds to that of SATA 1.5 Gbps and many were worried that they wouldn't be able to use their SATA 3.0 drives to their fullest potential, especially those who have upgraded to SSDs. The screenshot above sparked a huge uproar in the Apple community and it seems to have drawn Apple's attention pretty quickly.
Apple has issued a fix for the firmware that enables transfer speeds up to 3.0Gbps. Those seeking out the firmware can find it on Apple's support website. The Macbook Pro EFI Firmware Update 1.7 weighs in at 3.35MB and requires OS X 10.5.7.