Hidden features in iOS 5

http://www.digitaltrends.com/mobile/our-favorite-hidden-features-of-ios-5/

• Assistive touch
• Hide your safari activity
• Take pictures with your headphones
• Alternate routes in map
• Create custom vibrations and LED flashes
• Get rid of Newstand icon

Another post by Herald Sun:
http://www.heraldsun.com.au/technology/hidden-features-of-apples-ios-5/story-fn7celvh-1226177341387

• Lies, - volume button doesn't take pictures
• Custom autocomplete phrases
• Camera focus lock