Yeah, the Gigabyte iRAM used regular sticks of RAM as a storage medium. The only problem with that is because RAM is volatile, when power gets cut all the data is gone forever. That's why the iRAM relies on this battery pack that automatically recharges everytime you turn on your computer.
Samsung, Sandisk and some other companies are starting to release Solid State Drives and it's essentially NAND flash on a PCB inside a shell about the size of a 2.5" notebook hard drive. The difference with NAND flash is that it's non-volatile, therefore it doesn't require a constant power source unlike Gigabyte's iRAM.
Expect to see more about SSD during CES 2007.
I wish I could go...so many awesome products.