At the Technology Showcase yesterday during IDF I got see in person the new Western Digital hybrid hard drives that will combine a single platter spinning disk with a NAND flash for a hybrid solution at under 5mm thick.
You can see that is barely enough z-height for a standard installation screw and this will really help get larger amounts of storage into thinner devices. WD will have it available in 500GB and 1TB versions though the 1TB model will come in a slightly higher 7mm variety.
The WD Blue models will be spinning disk only while the WD Black will combine as much as 32GB of flash memory but it could vary based on the specific OEM request and considerations.
Another requirement of this new form factor is the need for a new connector, conveniently named SFF-8038, that handles both power and data.
We are still waiting for pricing information, but another wave of hybrid technology looks to be on its way!