jailbreak your iphone: http://www.redsn0w.us/ , go to cydia and add http://sinfuliphonerepo.com to sources. or just type: sinfulrepo.com .go to it. go to "androidlock xt cracked" install it, go to settings>androidlock xt and choose your choices
You can't lock your iPhone apps without jailbreaking the phone.
Yes I Use it every day it is my lock screen on my Mac and IPhone 4
Nope. But you can take screen shots of them.
Yes, you can put an iPhone camera in an iPhone 3GS provided you have the required skills.
No, that has never been an Apple feature (unless you jailbreak). Otherwise, there is only the 4 digit PIN and the classic letter/number password.
That is the iPhone 4 GSM. It was the first iPhone 4 released by AT&T.
To put an HTC theme on an iPhone 4 you will have to jailbreak your phone and use appropriate software to download the theme.
Screen lock - is an option to stop accidental use of he phone while (for example) it's in a pocket.
Yeah, put it into Itunes and sync it with iphone
ya it can...but if phone import from uk so its difficult
Go to settings general passcode lock set code
No, it is not necessary to keep but for your precaution you should put bumper on your iPhone to protect from any damage.