It looks pretty sure that apple changed the sata spec on the new 13'/15' uMBP from 3.0Gb->1.5Gb. Instead of arguing "do we need 3.0Gb or not?",
So let's see some facts by how many people are/will be affected by the change.
If you select 1 or 2 , you are(will be) affected by the SATA spec change.
If you select 3 or 4 , you can just ignore those threads.
How do I check the SATA Spec?
Click "About This Mac"-> "More Info" -> "Serial ATA"
Beside Speed you will see 1.5 Gigabit or 3.0 Gigabit
If you are using SSD drive , the performance will be capped up to 150MB/s in the new 13'/15' uMBP
So let's see some facts by how many people are/will be affected by the change.
If you select 1 or 2 , you are(will be) affected by the SATA spec change.
If you select 3 or 4 , you can just ignore those threads.
How do I check the SATA Spec?
Click "About This Mac"-> "More Info" -> "Serial ATA"
Beside Speed you will see 1.5 Gigabit or 3.0 Gigabit
If you are using SSD drive , the performance will be capped up to 150MB/s in the new 13'/15' uMBP