Google’s first Android phone has finally made its way into long-waiting hands. The T-Mobile G1 device, expected to be in stores within the coming week, is drawing mixed reviews from early users. The closest thing to a sweeping overview might be that it is a powerful device with a few flaws but plenty of positives and potential, some of which isn’t yet achieved. One realization getting ample attention is the existence of a so-called “kill switch” — an option Google retains to remotely disable any Android application on a phone at its own discretion.