Here's a clever idea: a plastic bottle with a special cap that holds 1.4 grams of a powder, such as powdered green tea, that's released into the water below when opened. It allows you to mix fresh powdered drinks from a standalone bottle that you buy at the store.

It's a cool idea, but I wonder just what the benefits are. I mean, it's from a powder. It's not like it needs to be all that fresh. But hey, having a fancy cap like that has got to be a little bit more expensive, giving drink manufacturers an excuse to jack up prices and run an elaborate marketing campaign. I'm sure we'll seem them widespread in no time at all.

Trends in Japan, via Boing Boing Gadgets