It is sold by many different vendors under the names of O2 xda Exec, Orange SPV M5000, Dopod 900, Qtek 9000, T-Mobile MDA Pro, I-mate JasJar, Vodafone v1640, Vodafone VPA IV, E-Plus PDA IV, etc. Despite all the different model names and housing appearance, they all have identical hardware specifications with small differences in the external color and branding.
The most eye-catching feature of this device is its 180-degree swivel screen, allowing a quick swap between portrait mode and landscape mode. The GUI automatically adjusts screen orientation accordingly.
Most network-supplied versions of the Universal are shipped SIM-locked, with the O2 XDA Exec being a notable exception. There is a free SIM unlocking tool released by buzz_lightyear on http://www.buzzdev.net/. This process involves flashing a new Radio ROM onto the device, and may invalidate the warranty.