you should downgrade, theres only a really small chance of bricking. the emulators are awesome (there are lot in development, including an N64 emu) you put these emulators in a folder called GAME which is supposed to be in a folder called PSP. once you have 1.5 there are a lot of cool apps like devhook (lets you emulate 2.71), iR Shell (pretty much an OS itself
), and emulators
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