What year was the iPhone invented?

The iphone 4 was unveiled on June 7, 2010. It became available for pre-order a few days later and was released on June 24 in the US, UK and a few other countries. =M=
The iphone 4 has been on the market for not quite half a year,... to rest the various imaginary iphone 4 controversies invented by Apple haters who managed .