Windows Vista users will be happy to know that Toshiba has announced the U2K line of Windows ReadyBoost Transmemory USB flash drives. In an effort to increase the performance of Vista machines, the new drives will now act as external memory. It’s a good idea, in theory, but I doubt anything will help Vista. The U2K line will be available this October in 1GB, 2GB, 4GB and 8GB ($200) capacities. A limited edition 32GB ($665) Transmemory drive will be available in December.