Here is a robotic table that you can control with your smartphone. The FurniBOT-T2 Robotic Overbed & Side Table has 2 motor driven wheels and 2 casters. It can be controlled with iOS and Android device. You can install a camera where you like and watch a live stream over WiFi.
The height of this table can be easily adjusted. The base has space for your PC, books, foods, and drinks. A USB port is also available to charge your mobile devices.