"The Sony PSP, the Swiss Army Knife of mobile entertainment devices, received yet another feature in a recent firmware update with the addition of Skype VoIP support. The Skype software allows the PSP to make calls over the Internet. Skype users can call other PSP or PC Skype users as well as cell phones and regular phone lines. Skype-to-Skype calls are free, but calling out to a real phone will cost real money starting from 2.1 cents a minute depending on location. A Skype-enabled PSP can also accept calls, but you'll need to deposit money into your Skype account to cover for incoming calls coming from a cell phone or landline."