Let me know when they release a decent editor for it...
Oh, and you can run Vim on Plan 9 now. But it's kind of like visiting a foreign country and eating only McDonalds.
That was my major complaint about Plan 9 in general. As far as I could tell, it really wanted me to run with a one-handed keyboard and mouse.
...that plus the fact that Bell Labs invented "Not Invented Here" Syndrome.
But it is a really good editor, just not to my taste.