With the release of iOS 4.0.1 on Thursday, Apple instated changes to the way its iPhone handsets visualize bars representing cellular signal strength, doing away with a previously optimistic approach that compressed the dynamic range of bars to make it appear that a user's reception was much stronger than it actually was. In fact, AnandTech, which has been following the matter closely for weeks, discovered that Apple had compressed the dynamic range to such an extent that cradling the company's new iPhone 4 with the so-called "death grip" would make all of its bars disappear from just a 24 dB drop ...