The fact the UTF-8 was first "implemented" on Plan 9 has nothing to do with Plan 9's funtionality as an OS. Not true. The ability to adapt the system quickly in response to a changing standards situation made a critical difference in having UTF-8 rather than a weaker proposal accepted by X/Open and hence ISO.
The question is what new function Plan 9, as an OS, defines for
the end user.
Plan 9 is not for end users. Plan 9 is for programmers.
-rob
