A head scratcher for sure, but I think John Gruber put it best...

This, from the company that shitcanned Google Reader because they wanted to “focus”.

Going through to the article he linked to, Google apparently asked potential beta testers what kind of phone they used. Roberto Baldwin (the article author) concludes from this...

That indicates Google has plans for at least an Android app and potentially a mobile site for iOS, Windows Phone and BlackBerry.

Hopefully a mobile site would work on any platform, not just iOS, Windows Phone and Blackberry.