The iTwin USB drive is an interesting device that was unveiled for the PC user a while back. The drive now has an available update that will allow it to function on Mac computers. The iTwin update allows the drive to work with Mac OS x Lion and Snow Leopard. The update allows the sharing of files between the PC and Mac in a small package the size of a flash drive.
The files that are shared with the iTwin device are encrypted for protection with military-grade encryption. The iTwin has two parts that are identical and are activated by a computer with an internet connection. That allows the sharing of files between the two halves of the iTwin from any computer with a web connection.
The encryption used inside the device is AES 256-bit. The owner of the drives also gets a remote disable code that will allow the disabling of the connection if one of the iTwin devices is lost or stolen. The drives allow the use of a remote computer sort of like a personal cloud with access to all the storage that the remote system has available to it. The iTwin is available right now for $99.