Hardware-One has posted up a review of 3 ORB drives from Castlewood.
Coming on the IDE, SCSI and USB interface, they check out how the portable 2.2GB ORB drive/media performs on the Windows and Linux platform.

The USB ORB drive is a decent performer and load applications at respectable rates. With each little disk weighing a hefty 2.2GB, moving gigabytes of data from one system to another without a network available is hassle-free. Of course, it´s also an excellent way to backup important files and for the internal drives, a great way to try out different OSes. Its aesthetics make it a great addition to an iMac arsenal of devices.

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