Fusion-io came to E3 with the ioXtreme, a ridiculously fast 80GB solid state storage device. Normally, it's hard to get excited about storage, but Fusion-io claims to have a product that is, at the very minimum, two to three times faster than the fastest solid state drives on the market. Forget about even comparing it to conventional hard drives. As usual, speed costs money. Lots of it. $895 of it.
Unlike conventional hard drives, the ioXtreme uses a PCIe slot on the computer instead of a SATA port. With a max bandwidth of 300MBs, the SATA interface is actually too slow for the ioXtreme, which has burst transfer rates reaching 600MBs and sustained writes at 500MBs. The ioXtreme certainly won't hold all of your data, but it's great for games and as a scratch space if you edit a lot of video and audio. Fusion-io expects to ship the drive in July.