TightWind is written by Kyle Baxter. Stay Hungry. Stay Foolish.

David Pogue asks “why?” for Facebook Home, and answers the question himself:

Facebook’s answer to “why” seems straightforward enough; its research shows that Americans spend 25 percent of their cellphone time in Facebook. (Seriously?) Why wouldn’t we want to save the trouble of opening an app to stay in touch?

Of course, there may be other answers to the “why” — like those ads. It probably means a lot to Facebook’s advertisers to know that their commercial messages can now appear on your phone’s screen even when it’s locked.

Bingo.