Deberíamos leer las noticias y no solo el titular xD.
ACTUALIZACIÓN: parece que los problemas vienen exactamente cuando, sosteniendolo con la mano izquierda, tocas la esquina inferior izquierda, se entiende perfectamente viendo este vídeo:
Update 3: Another confirmation from Chris Morris where he shows the problem, where it doesn't lose service, but loses about 4 bars.
Chris also said he tested the hands thing while in 5 calls, and said that none have dropped so far. He had a conversation for 10 minutes while the phone was displaying no signal with no problem. This might point to a display issue? But how does that explain the images below, in Update 4? Weird. Here's him making a call while the phone shows 0 bars.
Update 14: Look! Reader Adam posts this video of his phone not having this problem. Very interesting.
Update 15: Reader Lucas confirms the bar droppage.
iPhone 4 Loses Reception When You Hold It By The Antenna Band?
He also tests making a call, and the bars continuously drop, but they haven't dropped the call. So the call is still active at one bar, but they're still connected.
Update 16: Reader Erik confirms what FameFoundry (Update 13) found, which is, if you don't touch the bottom of the phone, you're fine. But as soon as you connect the left side with the bottom, that's when reception starts to drop.
Es decir que es un fallo estúpido desde luego pero no como para decir que es una chapuza, y me da que con actualización de soft se arreglaría.
Sobre lo de la pantalla habrá que ver, pero parece mucho mas serio si.