I don’t know why a report like this is still necessary, but Mossberg has written a short article on the performance of his iPhone 4 over the course of six weeks out in the real-world. It doesn’t reveal anything we don’t already know between reception and the dead spot, though I decided to pull this particular piece out as it’s something that’s not often taken into consideration when discussing Apple’s design.

A key reason Apple moved most of the antenna to the outside of the phone was to free up room inside for a larger battery, while keeping the phone thin. In my six weeks of experience, the battery life has been outstanding. I have never run out of battery in a day’s use, despite constant, heavy email traffic, lots of Web surfing and app usage, and frequent checking of social networks.

[via The Wall Street Journal]