The X-Key. The truth is out there. From $300.00 for 256MB.
Xkey is a “mobility appliance”: a plug & play USB device that enables employees to work securely from any PC – complete with the critical applications, corporate data and security they need for productive work…Xkey securely mobilizes up to 2GB of corporate data – ensuring employees always have their documents, presentations and spreadsheets in their pockets. Corporations can further boost employee productivity by equipping them with applications (such as their corporate email) that run directly from their Xkey on any PC. Alternatively, Xkey can be used to connect securely to web-based applications.