Takara Tomy’s AutoMee S robot is the Roomba for cleaning your handphone or tablet screen. It is very small (can fit in your palm) and can automatically clean the screen without falling out from the edge (with sensors).
Here is a video on how it works.
The launch date for this device is 28th March 2013. No words on whether it will be available globally. Looking at it, it is more of a fun toy than a working cleaning robot. However, if you have 4 minutes to spare, let it clean your smartphone screen (8 minutes for tablet).
It is powered by a AA size battery and will cost you 1,575 yen (USD17).