“Are white iPhone 3Gs prone to hairline cracks? According to reports on MacRumors and the Apple Discussions forum, some users are discovering small hairline cracks forming on the white plastic shell,” Adrian Kingsley-Hughes reports for ZDNet.

“I’ve not been able to find any reports of these cracks appearing on black iPhone 3Gs,” Kingsley-Hughes reports.

Full article, with some good images of various cracks on white iPhone 3G cases, here.

According to Daily Tech’s Brandon Hill, “The cracks seem to mostly affect owners of white 16GB iPhone 3G models, but owners of black iPhone 3Gs have reported problems as well (but to a lesser degree).”

Hill reports, “Thankfully for most users, Apple’s retail stores are replacing the defective units free of charge on the spot.”

Full article here.

This is nothing new. As with many Rev. A products, manufacturing (and/or design) issues happen. It seems that Apple has already identified the problem and is taking the necessary steps to satisfy affected customers and, with history as our guide, will certainly work to correct the manufacturing (and/or design) issue in the future.

Note: We have access to information of several iPhone 3G (black) units, including our own units – some are in protective cases and some aren’t – that each undergo heavy daily use since Day One purchase and none of them have yet developed a single crack.

If your iPhone 3G plastic case is showing cracks, let us know below and be sure to contact Apple or visit your nearest Apple Retail Store for your replacement.

And now, stand by for the usual suspects to blow this all out of proportion in 3… 2… 1…