A device cooling and warming at the same time? This can't be safe for the universe, but the Tip N' Sip does it. Unlike the USB cooler and warmer we saw earlier today this device keeps the coffee/tea/whatever piping hot below and cool on top for safer drinking. The "tip" comes into play because you have to tip the mug to fill the top chamber with liquid for quick cooling.
Just don't use a large straw with this device, because then it will eliminate the entire purpose of the Tip N' Sip mug and make you look like a moron. $20.