[Bloody Sam Roberts]

Then it is an even more poorly constructed sentence than first seen. If, as you say, the author's intent was to use 'peak' intentionally to mean the highest level or greatest degree. Which I doubt.

But given the relative writing skills of journalists today...then it is possible.

[Swordmaker]

Then it is an even more poorly constructed sentence than first seen. If, as you say, the author's intent was to use 'peak' intentionally to mean the highest level or greatest degree. Which I doubt.

But given the relative writing skills of journalists today...then it is possible.

. Considering it's not a sentence I'm not surprised you'd say that. It doesn't have to be. It's a Section Header akin to a chapter heading. Perhaps you'd prefer this :

"An iOS Usage Peak at a Few Larger Cities in the US and Canada"

Instead of the original heading:

"A Peak at a Few Larger Cities in the US and Canada"

The header used in the article implies the information provided in the introductory paragraphs is what "peaked" while my revision is more explicit about that. Yet, both the preceding paragraphs and the entire following section are explicit about what peaks in those locations. I believe the header was sufficiently descriptive and well within the style guidelines with which I am familiar.

The fact is, that if you look at the map at the source, the data shows iOS peaks in ALL large cities in the US and Canada. . . and most of the world.