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by Sascha Corti.
Original Post: PSP OS Version 2.0 (Japan) released
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Metablogging via Gizmodo: The anticipated update of PSP's OS to version 2.0 has been released in Japan and is apparently working on US models as well - but remember, if you update your device, you are doing this at your own risk.
I4U.com has some screenshots that they took from their updated, Japanese version of the device which look quite promising: http://www.i4u.com/article3919.html.
Quoted from i4u:
The EBOOT.PBP files needs to copied to the memory stick under the folder PSP/GAME/UPDATE After that try to access the memory stick from the menu. The PSP is then detecting the update. After confirming a license agreement the update process starts.