Have you been waiting with baited breath for the much-anticipated PSP firmware update? The new firmware, branded as version 3.90, is now available for public consumption. The most significant improvement, of course, is the inclusion of a PSP-specific Skype client. This new software should allow you to chat and talk away to your hearts content. What’s more, the new firmware also includes Playstation Network improvements. Skype is only available for PSP-2000 series devices, but if you’re among the chosen few, we suggest you grab your PSP, hit the Network Update button, and get movin’!