If you want to heat up a baby bottle when you're out and away from your kitchen, you're usually out of luck. Not so with the Iiamo self-heating baby bottle, which uses some form of magic to heat up milk without any batteries required.
It uses a "100% organic heating cartridge that only contains salt and water." How does that generate heat? I have no idea, but it apparently works, and in just 4 minutes at that. For people who take their babies out on the town often, this could be a pretty great product.