To use Skype, PSP users need a memory card, a compatible microphone, and a connection to Internet.
Go!Explore GPS receiver and software, released in Japan more than a year ago, are finally coming to Europe and the North America. The use of the GPS will not only be limited to navigation, but the location information can also be used in games as well. Sony hasn't yet announced the price point for the Go!Explore, but the price of approx. $37 (6000 yen) in Japan would suggest a price around $40.
Source:
PSP Fanboy
Go!Explore press release
Skype for PSP press release












