Yeah. It can be used to call waiters without investing into a raspberry pie / ar... | Hacker News

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		jjsz on July 1, 2014 \| parent \| context \| favorite \| on: Yo Channel Yeah. It can be used to call waiters without investing into a raspberry pie / arduino and a bunch of rotary devices for each waiter when they all have phones.

eli on July 1, 2014 [–]

Wouldn't a text message do that too?

yefim on July 1, 2014 | [–]

Yo is one tap. Texting is many more.

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