"In general references, don’t use an article. When referring to the user’s particular iPhone, it’s OK to use your."

from (pdf) http://developer.apple.com/library/mac/documentation/UserExp...

They used to do it absolutely everywhere, with insane consistency. They almost always used the construction "with iPhone" and never "your iPhone" or "an iPhone". The only such strings I would find would be stuff like "your iPhone Developer Program membership".

They relaxed their style considerably after they started using the term "iOS" — they no longer need to use the same term to refer to both the abstract device and the one in your hand, though they still do quite a lot.

They've been doing it for at least 10 years, there's lots of "with Mac" and "with iPod" in their old copy text. It's something I can easily imagine Jobs having a fetish for.

everywhere. examples from apple.com/ipad

iPad Opens Up New Worlds for Autistic Children

Archaeologist Steven Ellis and his team use iPad with apps from the App Store to capture invaluable historical data in the trenches at Pompeii

Apps on iPad look...

...specifically designed for iPad

Stories are even more immersive thanks to iPad capabilities

...9.7-inch LED-backlit IPS display on iPad...

you get the idea