Sony has released v2.0 of its PlayStation Portable firmware in Japan, though the software apparently works fine on U.S. units. Why would you want it? Well, it includes a full-fledged Web browser and support for wallpaper images. Why would you want to skip it? It closes all of the security holes that permit homebrew apps. Needless to say, update at your own risk at www.playstation.jp/psp/update/ud_01.html......
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