SAN FRANCISCO  Did Apple make a lemon?

On Monday, Consumer Reports, America’s trusted source of product reviews, said it would not recommend the iPhone 4 because of a hardware flaw with its antenna that sometimes resulted in dropped calls. The independent consumer magazine also cast doubt on Apple’s recent explanation that a software bug had caused the widely reported problem. Apple did not return requests for comment.

Consumer Reports did not slap the iPhone 4 with a “don’t buy” warning, which it sometimes issues for shoddy or unsafe products. But it said that because of the design flaw, it would not recommend it as it did the previous version of the iPhone, the 3GS.

The next question is, Will any of Apple’s customers even care?

The various versions of the iPhone have been panned a number of times for myriad problems, real or perceived: slow network, cracked screens, dropped calls and no support for a popular Web video format. But iPhone sales have surpassed even the most optimistic forecasts and helped make Apple the most valuable company in the technology industry.

And despite early reports of problems with the iPhone 4 antenna, Apple sold 1.7 million units in just three days, making it the best-selling new technology gadget in Apple’s history.