Whether you have someone's attention is obvious regardless of what they're holding, so I don't care about that. If someone is rude enough to give only partial attention while they tweet through a conversation, that's fine and I'll deal with it as appropriate.
That said, I have noticed a high correlation between taking notes on a phone and taking really shitty notes - a few characters instead of a sentence, no connections between related ideas that came up at different times, no drawings, interruptions for futzing with the lackluster select/editing tools on touch devices.
But maybe all that doesn't matter and it's not the tool at all. Maybe it's that the only people who try it don't know how to take notes while being engaged in a conversation.
That said, I have noticed a high correlation between taking notes on a phone and taking really shitty notes - a few characters instead of a sentence, no connections between related ideas that came up at different times, no drawings, interruptions for futzing with the lackluster select/editing tools on touch devices.
But maybe all that doesn't matter and it's not the tool at all. Maybe it's that the only people who try it don't know how to take notes while being engaged in a conversation.