iPhone Shortcuts

iPhones are great!There is an App for just about everthing. Following is a list of handy shortcuts compiled by Apple to help  you get the best out if your iPhone 3GS.

Basic controls

Reorganise your home page : Tap and hold any application icon until they start to "dance". You can then move the icons or delete the apps.
Go to the top : Tap the time display in Safari, Messages and Contacts.
Switch between screens : Switch between screens by swiping across left or right. Or tap once near the corner, to the left or right of the row of dots which indicates the screen you are on.
Cut, copy and paste text : Tap on the letters to activate the magnifying glass, then choose Select to bring up the Cut, Copy and Paste options. Drag the blue sliders to highlight the text.
Take a screen shot : Press and hold the Sleep button while tapping the Home button. The picture will be added to the camera roll.
Force quit applications : Press and hold the Power button until the slide to power off screen appears, then press and hold the Home button for about six seconds until the application quits.
Undo an action : Shake the phone.
Make calls from Safari and Notes : Press and hold the number for a couple of seconds.

Messaging

End a sentence and start a new one : Double-tap the space bar to add a period and a space.
Add words to the dictionary : Type the word when composing a message and it'll be saved.
Enter domain names quickly : Press and hold down the ".com" button and options such as ".org", ".edu" and ".co.jp" will appear. 
Enter accented letters : Press and hold down individual letters.
Enter punctuation quickly : Press and hold down "@123" button and slide to the required punctuation, then release it.
Quick delete : Delete emails, SMSes or podcasts in List view by swiping your finger across the right side.
Fix Caps lock : With Caps Lock Enable on (Settings > General > Keyboard), double-tap Caps Lock to fix it on or off. If it's off, click and hold Caps Lock then slide over to a letter to capitalise it

Multimedia

Wake up your iPod : Press the Home button to wake the screen then double-click the same button to bring up a set of mini-iPod controls and the last music you were listening.
Customise iPod controls : In the iPod application, go to More > Edit. Drag and drop shortcuts into the four slots at the base.
Listen to just the audio in a video : Press the Power button while the video is playing. This will turn off the screen and the video. Press the Home button twice then click play.
Zoom out in Maps : Put two fingers on the screen to zoom out when viewing maps.
Save images in Safari and Mail : Touch and hold an image in Safari or Mail and you'll be prompted to save the image. The picture will be stored in Saved Photos library.
Select camera focus point  : Tap anywhere on the screen.
Use the camera's macro mode : The camera automatically goes into macro mode when subject is very close to the lens.
Rename a voice memo : Tap ">" button to open the Info page. Tap Custom and type in a new name.
Edit a voice memo : Tap ">" button to open the Info page. Select Trim Memo and then drag the endpoints of the scroll bar to cut the sound.