More iPhone tips

• Calculator turns to scientific mode when you turn your iPhone 90°.
• You can double tap space to get period + space.
• If you double click Home button while the screen is locked, you will get an option to [play / pause] the [last picked / playing] song (it’s very useful when iPod will timeout after stopping it through mic clicker).
• Have you ever been using an app and it’s become very unresponsive or completely frozen? You can force quit it by pressing the Home button for at least six seconds.
• To silence a phone call, press the volume button. You can still answer the call after silencing it, until it goes to voicemail.
• To ensure that your phone is using as little battery as possible, you’re best off always pressing the Home button before locking so that no app remains running.