After several leaks appear in the internet, Apple today officially announce their upcoming mobile phone called iPhone 4. The smartphone supposed to use iOS 4 which is before known as iPhone OS 4.

It use IPS display same as iPad with the contrast ratio 800:1. Basically the size still similar with the old iPhone but with flat back bring 25% thinner chassis.

Larger battery able to provide 7 hours of 3G talk, 6 hours 3G browsing, 10 hours WiFi browsing, 10 hours video and 40 hours of music.

The phone equipped with 5MP camera with 5X digital zoom and also able to capture HD video at 720p / 30fps.

The phone will be available in black and white. Expected price is $199 for 16GB  and $299 for 32GB on sale starting June 24.

Pricing & Availability
iPhone 4 comes in either black or white and will be available in the US for a suggested retail price of $199 (US) for the 16GB model and $299 (US) for the 32GB model in both Apple and AT&T’s retail and online stores, Best Buy and Wal-Mart stores. iPhone 4 will be available in the US, France, Germany, Japan and the UK on June 24 and customers can pre-order their iPhone 4 beginning Tuesday, June 15 from the Apple Online Store or reserve an iPhone 4 to pick up at an Apple Retail Store. iMovie for iPhone will be available on the App Store for just $4.99 (US).

Also on June 24, a new iPhone 3GS 8GB model will be available for just $99 (US). iOS 4 software will be available on June 21 as a free software update via iTunes® 9.2 or later for iPhone and iPod touch customers.****

iPhone 4 will roll out worldwide to 88 countries by the end of September. iPhone 4 will be available by the end of July in Australia, Austria, Belgium, Canada, Denmark, Finland, Hong Kong, Ireland, Italy, Luxembourg, Netherlands, Norway, New Zealand, Singapore, South Korea, Spain, Sweden and Switzerland.

iOS 4 is compatible with iPhone 3G, iPhone 3GS, iPhone 4, second and third generation iPod touch (late 2009 models with 32GB or 64GB). Some features may not be available on all products. For example, Multitasking requires iPhone 3GS, iPhone 4 or third generation iPod touch (late 2009 models with 32GB or 64GB).

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