X2Go [1] is a free, fast, and flexible terminal server for any client that supports modern authentication technologies, such as card readers, USB tokens, centralized user management via LDAP, and authentication tools integrated in the KDE system management system.

The X2Go project was inspired by the Sun Ray product line [2], which has impressed thin client fans since 2006. The second Sun Ray release included lean devices that lets users log on using a smartcard to work on a centralized terminal server [3] [4].

In addition to the multimedia extras and security features integrated into the Sun Ray products, a session management system, dubbed "Hot Desktop Mobility" or "Hot Desking" by Sun, was probably the sexiest feature.

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