Walt Mossberg’s new review of iPhone 4

You should read the review for yourself but Apple is probably not happy with his conclusion:

So that’s my six-week, real-world report. Despite the hot-spot issue and the exposed antenna, the iPhone 4 does better than the 3GS for me in decent coverage. But I still wouldn’t advise adopting it as your primary phone if you live, work or travel in areas with poor AT&T reception, or if you prefer a network under less stress.