So you’ve just bought an iPhone and you’re looking for cool iPhone tips to make you look like a pro? Or you’re a seasoned user, but aren’t fully aware of all the stuff you can do on iPhone. And who can blame you? The iPhone has so much to offer that you can’t learn it all.

There are so many iPhone tips that it’s hard to make a list, so here is a list of some lesser known tricks.

Disabling iPhone 3G GPRS

Go to General settings and select Cellular data network under network settings. It’s got APN, username, and password fields. Type just about anything in there so that service providers do not get the real values. If it works, great. Else restart your phone, and you’re done!

Content restrictions

If you want to restrict iPhone content for certain apps, you can do it easily. For example, if you have teenage kids and you don’t want them to listen to certain kind of music; you can turn off YouTube access to their iPhones. Just go to General settings, and select restrictions. Enable them with a four digit code, and restrict the content you want.

Other domain endings

iPhone allows you to enter .com after URLs without having you type it explicitly. But what if you have to enter other endings like .org or .net? Simple- hold down the .com button and you will see options of other domain extensions. Select the one you want.

Taking a screen shot

This one is among the coolest iPhone tips. You see other people take hilarious screen shots of their chats. It’s totally cool, but how do you do it? Pretty easy. Hold down the home button and click on ‘power/sleep’. The screen will flash for a moment and then the current contents of screen will get saved in Camera roll.

Hide text message preview

When your Show SMS Preview option is disabled, you will not get any previews, but just a ‘New Text Message’ notification. So the next time you are checking your phone in front of your wife while your girlfriend sends you a message, you are safe. Go to General settings and select Passcode lock. Enter the 4-digit code and disable ‘Show SMS Preview’.

Force quitting an app

It so happens sometimes that you use and app and it freezes your screen. It gets annoying, but you can force quit the app by pressing on the Home button for about 6-7 seconds. Problem solved- the app will be closed.

Switching punctuation keys

Changing the mode between alphabet keys and punctuation keys is quite frustrating. To shift from alphabet to punctuation only temporarily (so that you don’t have to change back explicitly), you can press the “.?123” key. Don’t raise your finger just as yet. When the punctuation keys appear, slide your finger a bit on the comma/period key, and then release. Now the alphabet format will reappear.

The scientific calculator

To switch from regular calculator to a scientific one, you just have to rotate your phone sideways so that it is in landscape orientation. This will let you use extra buttons on the calculator.

Sharing URLs

If you want to share the URL of a cool website you are viewing with your friends, just tap on the address bar. Now tap on Share. Now an email will open up containing the URL. Simply select a recipient and add your comments. Now send the mail.

Calling people from Safari

iPhone tips list will not be complete if we don’t mention this one. If you are on Safari and you see a number there that you would like to call, you don’t have to close the browser. For example, you are searching for a restaurant and you see their number on their website. And you want to call them for reservations. Don’t close Safari. Simply tap the number and it will be dialed.

I’ve found some cool tips in an article. Here they are:

Don’t pay for ringtones – There’s no need to pay for ringtones.  Just choose a song you want to use for a ringtone in iTunes, drag the song into Garage Band, and use the “Cycle Region” button (it’s the button that looks like a refresh button, and appears near the play / skip controls) to create a region 40 seconds or less. Once you’re happy with your ringtone, go to “Share” in the main menu, then “Send Ringtone to iTunes”.  Your newly created ringtone will appear in iTunes, ready for syncing.  Remember, this doesn’t work for music you’ve bought through iTunes because it can’t be imported into Garage Band.

Only buy apps once – If you have multiple iPhones, or an iPhone and an iPod Touch, you only need to buy apps once.  You can sync your apps up to multiple devices!

Choose the right keyboard – Head into the settings and make sure you’ve got the right keyboard set.  If you’re in the UK, and select the British keyboard, you can get a “.co.uk” shortcut if you hold your finger down on the “.com” key when entering a web address.  It’s the little things.

Take better pictures – The iPhone’s camera has come in for a bit of criticism, but here’s a quick tip for better pictured.  Compose your shot while holding down the shutter button, then release it to actually take the picture.  Nine times out of ten, this will result in a better exposed and focused shot.

Control your home button – Hidden away in the settings is a way to change the function of your home button.  The options are quite limited, but it can greatly streamline the way you use your phone.  You can either focus the button around the iPod function, or the phone function.  Very handy.”