Verizon vs. AT&T

By Cary Chin Thanks to my old buddy Dave Castro I had the opportunity to spend a few hours with the latest iOS device to break sales records—the Verizon iPhone 4. I was excited to try out this device. We found from previous experiments on the AT&T iPhone 4 that the power efficiency of the device varied greatly depending on signal strength—so much so that it eclipsed even the display... » read more