[jharrison]

If we start with the premise that there are more people accessing email from a mobile device then we have to take into account how they're doing that.

I have the Gmail app, iPhone's built-in Mail app, and Mailbox app. The only one of them that filters my email using the new Gmail tab structure is the Gmail app (which is not my primary mail app).

This also doesn't take into account that there are still thousands of businesses that are using Outlook to access their Gmail. B2B operations won't have to deal with the Gmail filtering as much.

There's no question that the new tab system has SOME impact but I don't think we can simply accept the numbers in the article as fact in all cases.