My friend and colleague Harry McCracken recently bought a brand new Droid from Motorola. He says it's a "loaf of day old bread." He's right. The Droid and Android 2.0 were introduced with much fanfare in December, but have already been eclipsed by Android 2.1 running on Google's Nexus One, and there are some serious ramifications for being behind. For example, Google recently touted the latest mobile version of Google Earth, which is a cool app that you won't be able to use unless you're running 2.1. Sure, Google says "Google Earth will be available in Android Market on most devices that have Android 2.1 or later versions," but that's most, not every. And what does Google mean when it says "as devices like the Droid get updated