Unless you really need something "tough", I'd stick with whatever works of the normal variety. It's cheaper to replace them when they break than to get something heavy duty unless mission reliability is paramount (ie: military).
My primary requirement is readability. If i pick up my Ipad and cant see it, it is useless to me.
Last year I bought my Grumman Tiger equipped with an Aspen Pro flight display. You can orient so the sunshines directly on the display and see everything perfectly. It is awesome.
That has not been my experience with with G1000 displays for example (not to get off track with the thread). Now that I know for sure LCD displays can really do that, thats what I want in my hands when I need to glance at a chart.
Capacity in Consumer electronics is not usually about overcoming technical chalenges, its about building a device to fall within a specific price range. More expensive, but really does the job is sometimes the more sensible way to go.
I don't believe you can really keep up with new features and functions in consumer electronics, the same way you might develop a technology roadmap for support of a deployed system. Most consumer electronics strikes me as a cycle where the demand for features is manufactured through clever advertising, then filling that manufactured need, all the while calling it new technology.
Thats why, IMO, you have zillions of people paying hundreds of dollars per month to transmit speech data that has no dollar value whatsoever.
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