For all you naysayers, you should explore the protocols in ATA-8, if you are running NT6 or NT6.1, that would be Vista or Windows 7. Ready Drive allows the system to do a number of interesting things with the flash cache. Flash memory has no rotational latency; however it damages itself on every write. That means your storage on magnetic media is more durable, but it reads slower. The benefit of hybrid is your data is all on magnetic so it is more durable, but some gets duplicated on flash so it is faster.
Here are the features when running Vista/7. NT6 saves boot data to flash so reboots are faster. If you hibernate, portions are saved in flash so resume is faster. Windows can write to flash without spinning up the drive so your battery lasts longer. Finally caching takes place for recent data so the system appears to speed up.
All these benefits are also available if you insert a type 10 SD card in your SD slot. And with the price of SDHC, you could go for 16GB.
Mark Russinovich wrote an interesting article here,
http://technet.microsoft.com/en-us/magazine/2007.03.vistakernel.aspx Paul
