You read that right. Bit-tech has it from "several sources close to the hard drive industry" that Western Digital is working on a 20,000RPM followup to its new 10,000RPM VelociRaptor performance champ. Same 2.5-inch format, same 3.5-inch housing only now designed to better cancel out the drive's noise. The idea is to take on SSDs in terms of performance while offering substantially greater capacity as flash memory prices continue to fall. We'll just have to pretend that power consumption, vibration, and ruggedness aren't a concern.