Intel: New SSD in Work for "SSD Caching"

With the chipset Z68, found in Mac 2011, Intel launched a technology named SSD Caching, making use of a small SSD as a cache to speed up access time to plate-based HD. The founder will be releasing soon small SSD, identified as 313, offering 20 to 24 GB of SLC Flash memory engraved at 25 nm and costing respectively 99 to 119 USD respectively. The main problem is their size: based on a 7mm thick , 2.5" format. If it can easily be installed in a desktop, it is completely useless in a notebook.
Lat year, a rumor was indicating that Appel wanted to add 8 to 16 GB of cache to its notebook, as a caching function, but chipset available at that time were not supporting such feature. We will maybe see this function implemented in the forthcoming Ivy-Bridge models, except if Apple decide to move by default all its notebook models to SSD, but it would have a huge cost