If you want to be European, you could try Anglian Linux Und Gnu... ;-)
Some of us use *BSD's, some of us may even use GNU/Hurd,some of us even use Megadoohickey 9's, but pretty much all of us use Linux. However, I think most people were attracted to the list because it was a *Linux* user group. I think a name change would be confuzing and detrimental.
Of course, that doesn't mean we can't talk about GNU/Hurd, *BSD's, Slowarse, Megadoohickey 10 AND Linux!
;)