But what if you really want to know exactly what you're doing with that fancy toothbrush via the web or your smart device? That option (which includes a 3-axis motion tracker plus stats via an app), will set you back $150. To be fair, that also grants software access to the accelerometer and built-in microcontroller to do with what you will. The whole shebang is open source, so the hope is the development community will build even more apps to take advantage of the hardware. Of course, none of this will be possible unless the $12,500 crowdfunding goal is reached. But you do want Oral B to have some competition, don't you?