Walt Mossberg reviews iPhone 4

Well, of course he did! It’s an Apple product, so who else would have a full review before the product’s available? Gizmodo? Ha! David Pogue? Well…perhaps. But this time, it’s Mossberg, and he’s mostly quite impressed.

Walt breaks the review down into XXXX categories: Design, Screen / Voice / Battery / Camera, FaceTime, Multitasking, Folders, and The Big Downside. I’ll let you just go ahead and guess what last one is. [Hint: It has nothing to do with Apple or the iPhone hardware itself.]

I’ve been testing the iPhone 4 for more than a week. In both hardware and software, it is a major leap over its already-excellent predecessor, the iPhone 3GS.

It has some downsides and limitations—most important, the overwhelmed AT&T network in the U.S., which, in my tests, the new phone handled sometimes better and, unfortunately, sometimes worse than its predecessor. I’ll get into that below. But, overall, Apple has delivered a big, well-designed update that, in my view, keeps it in the lead in the smartphone wars.

For the full review (in both text and video), read All Things Digital.