Apple continues to publish videos that show the antenna issue the iPhone 4 experience on other smartphones.
The opposite of amplification, attenuation happens whenever a signal is obstructed. Apple shows that griping some other smartphones tightly also results in signal loss.
Apple has already published videos of the Droid HTC Eris, BlackBerry Bold 9700, Nokia N97 mini, Samsung Omnia II and iPhone 3GS and now the just launched Motorola Droid X.
You can watch all antenna videos on Apple. Via MacRumors. You can also watch the video below.
Showing that this is a general problem is all good, but it has more people troubled on the iPhone 4 than on other phones. Apple is giving away free cases after all.