Behold the ioDrive. With its passive cooling and stubby PCIe connector, it could be easily mistaken for a cheap video card. A fat bank of memory chips, however, shows what it's really about: 80 gigs of ultra-fast NAND flash memory.
The theoretical specs are breathtaking: using PCI-Express x4, it can write at up to 368 megabits/s and read at 473 megabits/s, several times faster than standard SSDs, even outstripping high-end 15K hard drives from Seagate.
With an MSRP of $3,000 and up, it's targeted at servers rather than home computers, in configurations of up to 320 gigabytes. It's 64-bit only. You can't boot to it, either, according to Chris Ram's writeup–but that's just because it's a prototype.