 Pressing the Home button while doing anything except playing a game will bring up the XMB, which theoretically allows for multitasking; however whatever the user was doing is cancelled upon accessing anything else, except in the latest firmware release that can display pictures and play music simultaneously.The PSP's default battery life varies widely depending on application from less than 3 hours while accessing a wireless network and having screen brightness on its highest setting to more than 11 hours during MP3 playback with the screen turned off.An extended-life 2200 mAh battery will increase this by approximately 20%.