21 hits and misses from CES

This ghost-shaped robotic sensor device measures how well you brush your teeth, knows how much you drink and watches you when you sleep.

"The idea behind Mother is that you can have everything in your home constantly monitored," CNN tech editor David Goldman writes. "Affix a sensor to your door, and it's a door alarm. Put a sensor on your grandmother's pills, and it will tell you if grandma is taking her medications. Put it under your pillow, and your sleep habits get tracked."

Interesting or not, it's hard to deny that there is a certain creepiness factor to Mother.