Thanks Si for this belated release news on TrueCrypt, a week old but better late than never eh?
TrueCrypt is a free open-source disk encryption software for Windows Vista/XP, Mac OS X, and Linux. Some of its main features include: Creating a virtual encrypted disk within a file and mounts it as a real disk, Encrypting an entire partition or storage device such as USB flash drive or hard drive and ability to Encrypt a partition or drive where Windows is installed (pre-boot authentication).
TrueCrypt 5.0a | 2.4 MB (Freeware)
TrueCrypt - Free Open-Source On-The-Fly Disk Encryption Software for Windows Vista/XP, Mac OS X and Linux - Downloads