Does it fix the headphone echo caused by Apple's wacky implementation of noise cancellation? Sure, the person I am talking to hears me just fine, but I don't want my noise isolating headset to pick up every little noise around me and transmit it into my headphones. That kinda defeats the purpose of 'noise isolating'. Just give us the option to turn this 'feature' off!!!

I had read about Apple asking a user experiencing battery problems if they would mind installing monitoring software to help diagnose the problem. Does Apple make this software available to the masses so that more users may help in providing usage data?

I have not experienced any problems with my 4S and absolutely love it. I would also happily provide a positive control if I knew such software were readily available.

And what about Airplay woes - cut outs after a few seconds with the iPhone 4S. From information I have, 5.1 does nothing to fix it.

None of the Apple or tech sites seem to discuss it.

I am certainly not the only one - https://discussions.apple.com/thread...t=165&tstart=0 - pages of people with problems

B&W (Zeppelin Air), and other manufactures say apple is working on a fix. Come on.. it's been weeks now and we cant even use Airplay!

Some Apple support reps when you call them dont even know what Airplay is. Im baffled at the ignorance. I thought Apple support was known to be good! i found myself explaining it wasnt an app but a feature. took 3 people and 40 minutes to finally be directed to a 'senior' person who finally did.

No problems with battery or AirPlay here. Love my 4S. Hope they can fix the problems that others are having.

I know exactly what you mean! WTF!!!

I have noticed a noticeable battery life increase when disabling Siri. When Siri is enabled, a small infrared LED light is always on when your screen is illuminated for the "raise to speak" feature. It's purpose is to notice when you raise your handset to your ear to speak to Siri without any button pressing.

For those with battery issues, I would suggest disabling Siri for a day or two and see if it helps.

Without experiencing or knowing much about the problem, my first guess would be that it is likely affecting the same group of people who were affected by "Antennagate", i.e. a group of people who experience poor network coverage. As far as I know, when in a poor coverage area, more power is consumed attempting to find a strong signal. With features like Notification Center's geofencing and current-location-using weather, the phone is more frequently in need of a data connection. Perhaps something else about iOS 5 exascberates the problem.

For the majority of people in strong cell coverage, no problem exists. For a minority, it means terrible battery life. If this is true, a slight fix may be to turn off Location Services for Notification Center. While not experiencing terrible battery life, disabling this feature rewarded me with better and more consistent battery life.

Just a theory.