Did you ever wonder why it took Apple ten months to produce the white iPhone 4, which finally goes on sale tomorrow? According to The Wall Street Journal’s Mobilized blog, white iPhones need UV protection. Author Ina Fried interviewed both Apple’s boss Steve Jobs and marketing honcho Phil Schiller. The latter said:

And here’s from Jobs:

Jobs also confirmed that an upcoming iOS update will address that location tracking issue that Apple earlier today characterized as a “bug” and confirmed Apple will next week testify in a Congress hearing about location-gathering practices.