The white version of the iPhone 4 which was delayed first until late July 2010 and then delayed a second time until late 2010 only to be delayed a third time unofficially until Spring 2011 looks set to arrive imminently.
In a conversation with Engadget's Josh Topolsky, Apple Co-founder Steve Wozniak has confirmed that Apple suffered issues with the white iPhone due to light leakage when the camera's flash was used. Recently the device has begun appearing on inventory systems of carriers and retailers around the world including AT&T, Best Buy, Vodafone Germany and more.
Wozniak also confirmed that the white iPhone will be released in the near future.