Plausable Deniability (Score 1)

http://www.truecrypt.org/ -- Best free one-the-fly virtual drive encrpytion with the option of encrpyting a volume with in one another that is impossiable to find. This allows the user plausable deniability, which is huge. They may crack the outer encrypted drive, but then they can never prove there is a secret inner drive! Good performance and benchmarking too...