Just how exactly does the Pandora/Menu button on the Pandora work? I can't find any reference to how it works. For example, what happens if I was playing a PSX ISO and I wanted to check my mail quick so I press the Pandora Button? Will it take me to a menu of options similar to the PS3 before in-game XMB (quit game, change settings, etc.) or would it take me back to my desktop like hitting the windows key when you're playing a PC game?