This idea would be great for map makers.
There is a new command added, it is /set.
/set <target> <newname>
So, I could use this in a mob arena map like so,
/set @p archer
/give archer bow
Interference with real players names...
- So, what I was thinking is that there could be some kind of special character in the name, for example.
(I have no idea how you would do this with /entitydata or /replace item, will try to figure it out later)