Thanks to our friends at Everything USB we've learned that the Taiwanese manufacturer InnoDisk has come up with an internal USB drive. Developed with Vista's ReadyBoost technology in mind, the drive connects directly to the motherboard, freeing up your computer's USB ports.
According to Everything USB, the drive operates at 3MB/s for 512KB random read/write and 5MB/s for 4KB which is more than enough for ReadyBoost. InnoDisk's new internal drive is available in 2GB and 4GB capacities with prices starting at $15. More information can be found here.
