Researchers in the Sheffield Centre for Robotics, jointly established by the University of Sheffield and Sheffield Hallam University, have been working to program a group of 40 robots, and say the ability to control robot swarms could prove hugely beneficial in a range of contexts, from military to medical. 
The researchers have demonstrated that the swarm can carry out simple fetching and carrying tasks, by grouping around an object and working together to push it across a surface.
Wow! Decades of fake promises that we “will have a robot in each house”, we are still playing fetch with small dummy machines… We are talking about SOLID RESULTS DELIVERED here… Hehehe… (no, no it is not a matter of fooling us to get funding. These ARE the things they get funded for! The other robots advertised are just for the new Star Wars episode…)