My biggest concern with perl6 used to be that without a default implementation you would be spending too much time making sure that your code would run on the different implementations, as I fully expect the underlying languages to cause differences in compiler behavior. Although it is my personal belief that Rakudo will become the de-facto implementation and solve that issue.
Projects like November helps sell perl6 more than anything. The more usable perl6 seems to be, the more it will get considered for use.
Confucius says kill mosquito unless cannon