PSP Firmware 3.90 is released. Support for PS1 games increased and Skype added but only for the Slim model PSP.

    PSP owners are in for a treat today as the newest firmware update includes Skype, the Internet phone service. The Slim model's increased RAM allows users to download Skype. Fat PSP users are out of luck. You can make free PSP to PSP Skype phone calls. Calls to landlines and Cellphones are also available but for a price. You can sign up for Skype Pro for three bucks a month and get unlimited calling to anywhere in your region. You can also give you PSP it's own phone number. The PSP's headset and remote are required to make a call and Sony will be releasing a remote and headset specifically made for Skype.