October 13, 2005
PSP goes 2.50
According to PSP Updates, the new firmware version 2.50 is available for network upgrade. Other than the bogus 2.01 version, which failed to provide new features and only messed with the ability to downgrade the PSP to older firmware, this one introduces some new stuff. Of note are the LocationFree video player and the ability to play copyright protected movies from the memory stick.
The japanese PSP homepage allready offers the new firmware for download.
Warning: Upgrading your firmware to a version higher than 2.0 makes it impossible to run homebrew for the time being.