Joshua Brustein wrote an inflammatory piece for Businessweek, called Hey, Android Users, Don’t Buy the New iPhones. In a nutshell, the basic premise is this: Although the new iPhones are the best phones on the market and superior to the larger screen Android devices they are replacing, it’s just too hard to switch ecosystems, so stick with Android.

I struggled with a reply to this. And then I read John Gruber’s response on Daring Fireball. Spot on. Go read it.