I just bought a new iPod Touch off eBay, and it came, and I assume was bought, from Singapore. Its all official and new and such, however Im curios to battery life. General question first, does web browsing via WiFi take more battery then playing music? Or even playing video? Can someone redirect me to where I can find what Apple says about video and music playback. How many hours on average is expected? ...and do Applications take alot of battery power? Assuming it is something like Tap Tap Revenge/.