It turns out that the launch of the white iPhone 4 was delayed for nine months because of a lack of UV protection, according to Apple.
“It was challenging. It’s not as simple as making something white. There’s a lot more that goes into both the material science of it-how it holds up over time, but also in how it all works with the sensors,” Apple senior vice president Phil Schiller told All Things Digital
“We thought we were there a year ago, or less than that, when we launched the iPhone 4, and we weren’t,” Schiller said. By waiting, he said that the company was able to deliver a product that will live up to expectations.
The white iPhone 4 has gone on sale in the United States and 27 other countries yesterday, nine months after it was initially supposed to launch.
White models of iPhone 4 will be available in Austria, Australia, Belgium, Canada, China, Czech Republic, Denmark, Finland, France, Germany, Hong Kong, Ireland, Italy, Japan, Luxembourg, Macau, Netherlands, New Zealand, Norway, Singapore, South Korea, Spain, Switzerland, Sweden, Taiwan, Thailand, UK and the US, beginning Thursday, April 28 and in many more countries around the world soon. White iPhone 4 will be available for a suggested retail price of $199 (US) for the 16GB model and $299 (US) for the 32GB model, both with contract.[Source]- AllThingsDigital