Speedy

There are a variety of reasons why it's probably not a good idea to have robots moving around at high speed indoors.

• There's likely to be more wear on the carpet, and "tracks" will become conspicuous.
• There's a tripping hazard.  One second there is no robot and the next there is.
• If anything goes wrong and the robot hits something, it could cause non-trivial damage - possibly including generating fire hazards.
• Last but not least, more speed usually means more noise.  Noise level is something often forgotten, but for robots operating indoors I think it will be a factor.  People already fuss over noisy PC cooling fans.

However, in industrial settings such as warehouses where there are rarely people around and it's a more controlled environment I expect that it will be normal for robots to be moving at this kind of speed.

For most domestic or office space service robots probably a very pedestrian Turtlebot-like speed of 0.3m/s will be about as fast as it gets, and may even be slower if handling objects.