Singleton sets

What's the canonical equivalent of java.util.Collections.singleton() in 
Scala? The obvious candidate appears to be,

  Set(e)

ie.

  scala.collection.immutable.Set.apply(e)

but enfortunately the element type A is view-bounded by Ordered[A] so 
this fails for for elements of non-Ordered types. Is this intentional? 
the bound doesn't appear to be doing any useful work here.

Cheers,


Miles