Apple’s new iPhone 4 suffers from a serious antenna problem that disrupts voice and data signals. Apple fired back at its critics and competitors by claiming that all smartphones have the same issue. We tested five smartphones that compete with the iPhone 4: the HTC Nexus One, the HTC EVO 4G, the RIM BlackBerry Bold 9650, the Motorola Droid X and the Samsung Vibrant. The Samsung Captivate on AT&T had the greatest amount of signal loss–even when we held loosely at its antenna.”]