Each week Ross Rubin contributes Switched On, a column about consumer technology.

Beyond an opportunity for a lucky few to visit the surreal and sophisticated wireless testing labs buried deep within the Apple campus, the Steve Jobs "Antennagate" press conference had few surprises in terms of using a tool at Apple's disposal -- its own Bumpers (augmented by those of third parties) -- to address a vulnerability of the iPhone 4 antenna design. The difference between the iPhone 4 and other devices is the clear marking of the spot at which physical contact causes the signal to degrade. Optimists could consider this a visual reminder to avoid contact while pessimists could see a constant reminder of imperfection. Regardless, at its press conference, Apple added – and continues to add -- visual verification of its assertion that multiple handsets (or at least smartphones) can fall victim to a strategic grasp.

Beyond that, the only muted revelation of the day was that AT&T is reporting that the iPhone 4 is monitoring dropped calls on the iPhone 4 at a rate ever so slightly above that of the 3GS. However, the 3GS did not have a reputation for being particularly tenacious at holding on to a call. Indeed, were it not for all the heat the previous iPhone took at AT&T, perhaps Apple would not have had to push for so radical an antenna redesign. Therefore, it would have been interesting to know how the iPhone 4 compared to the AT&T smartphone average (skewed as it is to iPhones anyway), especially given the earlier Apple demonstration of how other smartphones can suffer from attenuation.