Many of my customers are requesting passcode removal of their iPhones. The true sense of removing it is by wiping it to factory defaults. How will you do a factory reset when you doesn't remember your passcode? By so doing, it will wipe out everything on your iPhone: contacts, sms, etc.
1. Connect your iPhone to your computer using the usb cable provided, but make sure that iTunes is installed with the latest version.
2. Turn off your iPhone.
3. Press and hold both the home button and the power button until an apple appears on the screen.
4. Follow the prompt on the display and the phone is ready again. It will be recognized by iTunes too.

On the contrary, you don't need to do the factory reset if you have done a precaution to your precious iPhone. Enable the automatic deletion of passcode after consecutively typing your passcode 10 times incorrectly. By default, it is set to off. So how?
Go to Settings > General > Passcode Lock. Turn it on!

For iPhone addicts, these set can be used for simple photography works. I was fascinated when one of my colleagues brought the 8x telephoto lens and attached to his iPhone. Checking the settings and taking pictures with it, it's quite a remarkable addition to your iPhone. Hippy when no one else uses such or at least 1 out of 100 thousand people who owns iPhone have it. Then it make one's iPhone revolutionized, otherwise, just take your DSLR with you. Nothing compares to the wider, longer, crisper output of those cameras. These accessories are for fun, easy, and enjoyable snapshots. For starters, wide angle lens are used to take wider pictures, not panoramic but "close" to it, the idea is the same. Macro lens are used for like getting a clearer view of an up-close photographs, lets say a document, or a dew on a leaf. On the other hand, when we say 8x optical zoom, this is usually the selling point of cameras, the bigger the optical zoom, the farther you can take the images closer. And for fish eye lens effect, instead of the usual rectangle as a result of your picture, it will turn into a circle, just like your reflection when you look into an eye. But this type of lens is a no-brainer since you can edit your pictures from photoshop and make it with fish-eye effect. There you go, the lenses that are available on e-bay are like $50, more or less.