VoIP on the PSP, but just for Great Britain

British Telecom and Sony Computer Entertainment reached an agreement in which the famous console PSP (PlayStation Portable) may be used like a VoIP "phone", by the Go!Cam, a PSP gadget made by Sony, that integrate a WebCam and a microphone.
The VoIP communication by the PSP happens by way of Wi-Fi hotspots property of British Telecom, the service is available for the moment just for the Great Britain.