This is a simple tip that a lot of people miss out on. If you are reading a web page, browsing through your email, or looking at a text message and need to get to the top of a page there is a simple short cut that will get you there in a flash.
Instead of swiping your finger to scroll to the top of a page, just tap the status bar on the top of these applications and the iPhone will quickly take you back to the top. This technique is being used by other apps as well. It saves a significant amount of time and finger swiping than scrolling.