When you're buying an iPhone, you'll probably wonder what's so great in the iPhone 4 which isn't there in some other smartphone.
Well, this list is a start -
1. Retina Display - The most high-res screen ever on a phone
2. MASSIVE collection of applications - Hundreds of thousands of apps for the iPhone
3. Great Camera
4. Facetime ( Video Call )
5. HD Quality Video Recording
6. 2 Great Cameras ( One front and one back ) with LED Flash
7. Apple's awesome touchscreen and multitouch technology
8. Stunning exterior design
9. Superior accelerometer technology
10. iMovie - The most powerful video editing app.
11. Game Center
12. Printing ( wirelessly ) and AirPlay
13. Apple A4 Processor with 1GHz Processor
14. iBooks - an ebook reader with hundreds of thousands of titles. iPhone also has a kindle ebook app.
15. Noise suppression technology to increase phone call clarity
And if that doesn't convince you, then these probably will -