I was a robot for 3 days in London
In August, I attended the World Science Fiction Convention (WorldCon) in London. I did it while in Coeur D'Alene, Idaho by means of a remote Telepresence Robot(*). The WorldCon is half conference, half party, and I was fully involved -- telepresent there for around 10 hours a day for 3 days, attending sessions, asking questions, going to parties. Back in Idaho I was speaking at a local robotics conference, but I also attended a meeting back at the office using an identical device while I was there.
After doing this, I have written up a detailed account of what it's like to attend a conference and social event using these devices, how fun it is now, and what it means for the future.
For those of you in the TL;DR crowd, the upshot is that it works. No, it's not as good as being there in person. But it is a substantial fraction of the way there, and it's going to get better. I truly feel I attended that convention, but I didn't have spend the money and time required to travel to London, and I was able to do other things in Idaho and California at the same time.
When you see at new technology that seems not quite there yet, you have to decide -- is this going to get better and explode, or is it going to fizzle. I'm voting for the improvement argument. It won't replace being there all of the time, but it will replace being there some of the time, and thus have big effects on travel -- particularly air travel -- and socialization. There are also interesting consequences for the disabled, for the use of remote labour and many other things.
(*)As the maker will point out, this is not technically a robot, just a remote controlled machine. Robots have sensors and make some of their own decisions on how they move.