Samsung has officially debuted a notebook hard drive based entirely on Flash memory. The 32 gigabyte NAND flash drive is designed to replace traditional hard drives, bringing benefits such as faster boot-up time and longer battery life. The only problem is, the Flash hard drive is much more expensive than traditional hard drives. Some estimates place the price at $50 per gigabyte. However, the extra cost brings benefits:
5% of the power consumption of a traditional hardrive
3x faster at accessing data
Half the weight
On a personal note, this can't happen fast enough as far as I'm concerned. The generation of Laptops with Flash memory will be much better than our laptops today. Unfortunately, that generation is probably two years away, when they can get the costs down.