Memory maker Kingston this week announced the release of its fastest thumb drive, with the DataTraveler Ultimate 3.0 Generation 2. The USB 3.0 drive can write at up to 70MBps and read as fast as 100MBps when inserted into a USB 3.0 port. It remains backwards compatible with USB 2.0, though speeds on the slower bus are a much slower 30MBps whether reading or writing.