The first servant-bots that come to mind are the Roomba and its siblings. The Roomba came out in 2002, and since then several other companies have made robot vacuums of their own. Samsung has not two, but three*, and Neato Robotics has one** too, with laser vision! Asus has one with an antibacterial UV beam and a really pretty case***. But they're not the only bots with household duties. Panisonic has one to wash dishes**** and some other medically-based ones (see video below). You can build an alarm clock that runs away from you***** (click the link, there are videos). There are also robotic maids†, robots that cook††, and robots that mix drinks†††.
Speaking of medical robots, there seems to be something of an explosion of the suckers. Hospitals can get robots to treat depression††††, conduct virtual autopsies†††††, and check vital signs ‡
Let's not forget the office! Toyota has built a delivery robot‡‡, Subaru has a robot janitor ‡‡‡(pdf link), and there is a robot workspace wall‡‡‡‡.
Other uses for robots in the work place include:
- power line inspector ‡‡‡‡‡
- driving companion*
- police negotiator**
- vegetable harvester***
- customer service****
There are more robots here. For coverage of what happens when all work is done by robots, go here.
I'm going to go out on a limb here and say we'll see at least two-thirds of these bots in common use by 2020. Woohoo future!
* Engadget three times
** Also Engadget
*** Gizmodo**** Engadget
† all links via io9