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OTOH, I've been waiting for disposable coffee cups with OLED-based video ads ever since Minority Report. But tech progress is just too damn slow :P

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I dunno about OLED, but now that you say it the costs do make some sort of "smart" coffee disturbingly plausible.

Based on the recent post about the disposable Montreal subway tickets with a super cheap nfc chip (and amusingly on a paper ticket with a a printed on fake smart chip connection) it should be super cheap to have an automated kiosk that pairs your drink order to a paper cup that when a barista swipes shows your cup your order shows up or fills it automatically.

https://www.righto.com/2024/06/montreal-mifare-ultralight-nf... (It was linked from here but i don't have the HN link)

Seems like it would be cheaper to have a simple QR code be thermally printed on the cup. A fraction of a penny's worth of chemical spritz on the bottom of the cup would do the trick.

Almost there... https://www.moveelectric.com/e-motorbikes/super-soco-aims-se...

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