"'Any key answer' is not as practical or desirable on a smartphone with touch-enabled screens. In fact, when a call comes in, you might have noticed that the 3 hardware capacitive keys and all the physical keys are disabled and that's also a good thing."
I disagree. The blind must be able to utilize their phone as well. If you can't see the screen to 'touch' the appropriate graphic, then the phone becomes nearly useless. A one button touch to answer would be a great help to many.
I know there are apps that will read your screen as you drag your finger around, but often that takes the visually impaired too long, calls are missed, and in certain situations when a quick answer of the phone is OK, a ringing phone may become a disruption - restaurants, for example.
I am test driving the 521 for my wife now, but there are too many limitations for it to be a viable replacement for her old Motorola 'brick'. Some can be solved with a little app programming on my part, but the lack of single button answer may be a deal breaker.:unhappy: