The promised Sony PSP 4.00 was released by Sony.
The Sony PSP firmware 4.00 adds Google Internet search directly to the XMB interface. The Google search on the PSP will be able to recall your last 20 searches and gives you the same experience as searching directly on Google.com.
Another new feature delivered through PSP firmware 4.00 is the ability to change viewing speed during playback of videos stored on your Memory Stick PRO Duo.
Via the Japanese Sony PSP update page (Japanese). Sony also just updated the Sony PS3 firmware.
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