Gizmodo posted about this new product called Uturn.
She makes this device that looks really weird that sits on your stomach. It uses ultrasound and bluetooth to find out when your bladder is full then it lets you know it's time to go piss.
It's being branded as an incontinence aid, but wouldn't something like that be handy to help with potty training? Just slap this sucker on your toddler, and when the bells and whistles start blaring, Junior knows when to pee...