The redoubtable Consumer Reports says the iPhone 4 can drop connections in weak signal areas when you hold the phone with your skin covering the antenna gap on the lower left side. The non-profit organization tested three separately purchased iPhone 4s in a radio-frequency isolation chamber. The group says a little tape over the gap eliminates the problem (or you could, as Steve Jobs suggests, just not hold the phone like that). As a result of these tests, Consumer Reports does not recommend the purchase of an iPhone 4 at this time. Ouch.