Hacker News Reader

The XBox's Kinect camera, which was introduced around the time this was written.

Unique unlock code at the bottom of each can? Some kind of scannable QR code or NFC system? They do not care if you dump the ooze into the toilet, so long as it has been purchased.

You could even region lock the cans! Make sure nobody is trying to cheat you by purchasing wholesale or across the border.

Edit: You could even make them like some kind of Nintendo Amibo action figure. Dedicated holder device with API interface to the game.

The always on camera watches you drink it. The qr code is either on the bottom of the can or in the lid if you buy the deluxe bottle version.

Actually if you dump the can out the window, they'll claim it's piracy.

Real-time blood sugar monitoring, if your customers aren't diabetic yet they could be drinking more. Coming soon to a dystopia near you.

something something we can fill x% of the user's visual field without inducing seizures

QR code on the bottom of a heat-sensitive can? Or maybe it's transparent, with the QR code printed the same color as the liquid?

Mandatory Urinalysis

Nice try, evil mountain dew marketing executive.

Xbox Kinect