Hello Angier,
I've flown with an iPhone for a couple of years. I gotten no data
service (internet) at all at any altitude. I gotten voice calls
occasionally when at lower altitudes and in rural areas but the call
is usually dropped before any useful dialog occurs, so I consider that
non-functional. I do get some text messages when below about 5000 AGL
but even that's not reliable. It's pretty useless as a "phone" in the
cockpit.

The advantage of my iPhone is that no longer feel the need to carry a
laptop when traveling. I have iPhone apps that allow me to do my
weather checking and flight planning/filing. My "WingX" app also
allows me to download all current US approach plates and store them on
the phone. The resolution is very good/ very usable. I use it as my
terminal chart backup in the cockpit.

"WingX" also allows me to download a full DUATS weather briefing (FAA
legal briefing) prior to a flight. "ForeFlight" is another good
weather/ flight planning app. I also use "Weathermeister for the
iPhone" (my favorite weather site) extensively. I file my flight plans
with "FltPlan.com for the iPhone" and they are kind enough to send me
a text message with ATC's planned routing for my flight as soon as
they get it from ATC (at least 20 minutes prior to departure time).

Ron



On Tue, Dec 1, 2009 at 5:29 AM, Greenbacks, UnLtd. <N4ZQ@comcast.net> wrote:
> I'm curious whether any of you have experience with an iPhone in the air.
> How about internet access at various altitudes through their ATT service?
>
> Thanks
>
> Angier Ames
> N4ZQ
>
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