Anandtech has an article online today that looks at the Gigabyte i-RAM device that I showed you at Computex this past June
The other issue with solid state storage is that DRAM is volatile, meaning that as soon as power is removed from the drive, all of your data would be lost. More expensive solutions get around this by using a combination of a battery backup as well as a hard disk that keeps a backup of all data written to the solid state drive, just in case the battery or main power should fail.