The whole Google Account vs. Gmail account thing <i>is</i> confusing for people who never started off with Gmail. I did, and so things sort of "fell into place" for a lot of this very quickly on as Google started rolling out more features.<p>I suspect that the Google team expects/prefers that all Google Account holders are using a Gmail address as their primary email. I feel like that is the idea of the consolidated "persona" that the author mentions at the end of the post.<p>On a side note: the capitalized section headers of that blog are offensively large.