More on Mophie Juice Pack Air. I got the replacement. It worked for a few days and then stopped charging the iPhone.
It would not synch to iTunes from the beginning. It has gone back to Mophie and they have declared it defective. They said they will send me another one. It has not yet arrived.
While I was waiting, I got my hands on another Juice Pack Air. It has worked for purposes of charging the iPhone for about a week without a problem. It has never allowed me to synch the iPhone to iTunes through the case. In order to synch the iPhone, I have had to remove it from the Juice Pack Air case and plug it directly into my computer.
I have also continued to notice some signal loss when the phone is in the case.
So, the bottom line appears to be that the Juice Pack Air starts out as a great idea, but execution remains tenuous. As a charging unit, I am quite happy with it.
The failure to synch is problematic though and the failure rate that I have experienced In terms of units simply not working makes me think it is not quite ready for prime time. One other suggestion for the folks at Mophie, using a hard shell plastic case with a smooth finish is not the best idea.
Some softer outside coating to give the phone better protection would help. It would also help to have something in the finish that gave the case some resistance to slipping out of the user’s hand. Finally, such a finish would extend the useful life of the case. The exterior on the original Mophie Juice Pack works better than that on the Juice Pack Air.