I wonder if this could work on computers, not just smartphones/tablets. Presumably so, assuming they have enough motion sensors. Could a third party dev build it, or is it something that only Apple can build?

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ms7m an hour ago | parent [-]

This works really well in the Tesla Ubers here in NYC when i'm working on my MacBook :)

	▲	apparent 44 minutes ago \| parent [-]
		Ah, didn't realize it was on MacOS. I had only seen the announcement about mobile devices. Do you find it is more/less effective on different kinds of devices?