Plugin FastPower from homebrew developer Test30 is kind of useful especially for those who have PSP units with rather defective power switch. What the program actually does is allow users to turn off their PlayStation Portable or put it in standby mode with just one button press.

FastPower v0.2, much like the previous build, can be used both on the XMB and while playing a game. This is particularly important in making sure that we have put our units in standby mode or we will lose all those in-game progress if we forget to save and the battery runs out of charge.

Tesat30 mentioned that this works perfectly well with custom firmwares 3.10, 3.30 and 3.40 OE. The accompanying Readme fie has all the informationm regarding button presses that works with the plugin depending if you're on the XMB or while playing a game. In short, don't forget to read that first before installing this.