Remote Mouse - Turn your smartphone into a wireless touchpad and keyboard now!
Furbo - A treat-tossing robot for your dog
KDE Connect - Integrate Android with the KDE Desktop
Petcube - Play laser tag with real pets from your smartphone.
Monect - Make the best use of sensors on smart device to control PC, simulate steering wheel, game-pad...
Petcube Bites - HD pet camera that flings treats