Marketwatch: For some iPhone customers, activation delayed for days. Some buyers of the new Apple iPhone, after waiting in line for hours and even days to purchase the much-hyped product, were still waiting to activate the phone Sunday.

Most folks seem to be blaming AT&T, which is convenient. But this is an Apple product, too, and letting the iPhone maker off the hook, as it were, is too easy.

They’re both responsible — or maybe that’s irresponsible — for screwing up the launch for a significant number of their customers.