Kingston DDR3 XMP SO-DIMMS
Modules Support Latest Generation XMP-Ready Notebook Computers
Kingston announce last April 9, 2009 the release of its first XMP-ready HyperX® DDR3 SO-DIMMs for notebook PCs using Intel’s Cantiga mobile chipset. It was  tested on Notebooks PC’s with  great success according to Kingston. It is said to deliver the next-generation notebook PC’s with greater performance. The DDR3-SO DIMMS has a lower latency and voltage and with pre-programmed with JEDEC and XMP profiles.

Kingston Technology is one of the largest manufacturer of memory products.

Kingston HyperX DDR3 XMP SO-DIMM Specifications
Part Number Capacity and Features MSRP (U.S. only).
KHX8500S3ULK2/4GX    4GB 1066MHz Ultra-low latency (CL5-5-5-15 @ 1.5v) kit of 2    $ 212.00

Source: Kingston.com