Thanks to Clytie for bringing to my attention a great article by Paul Biba on Teleread.com. Paul describes using the iPhone's AirPlay feature with an AppleTV hooked up to a 50 inch screen to display the iPhone screen in extreme magnification.
iPhone displayed on a 50 inch TV, note cat in bottom left of picture for size reference
CCTV Magnification devices for low vision users typically cost a huge amount of money, so this combination could be a huge money saver for the visually impaired. Especially for those already owning an iPhone and/or AppleTV the additional cost could be minimal. I don't have a TV here so I can't try this out myself but I imagine this AirPlay monitoring could also be used with the camera applications to magnify physical objects. Can somebody report back about whether this works?
I also can't find any information about how the iPhone's three-finger-double-tap zooming works with AirPlay - will this zoom the image shown on the large TV? That'd be a huge additional help! [Edit: When I tested this using Reflection on my Mac it seemed to work which is very promising.]
To turn on AirPlay monitoring when you aren't in a video application simply double-click the home button on your iPhone, then swipe to the left twice. You should see the volume control and if AirPlay is connected there will also be a button there to turn the mirroring on.
Website: Apple TV/AirPlay combo are an undiscovered reading boon to the handicapped and vision impaired
- Ricky Buchanan