This is actually genius. We've used both stovetop and electric kettles, and I've honestly never considered the aggregate waste energy of heating up more water than needed. Spiffy idea. Can't wait for the Miito "kettle" to become commercially available.
A Tea Kettle Alternative That’s Cooler, Cleaner, and More Eco-Friendly | WIRED
Calling Miito a kettle is a little misleading, but it’s an intriguing alternative to heating small volumes of liquid.