Helpability
And no matter how much easier the iPad might be, I don’t think it could overcome the increased difficulty of solving problems at a distance. There’s no way to do screen sharing to fix things or see what [my grandmother is] referring to, and with so many unlabeled icons and “invisible†gestures, communicating interface details via phone would likely be even more difficult than usual.
An interesting aspect of a product's usability: if something goes wrong, how easy is it to help people?
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