Depends on your definition of "production ready", but I would not yet use it in any mission critical applications. And with Perl 5.12 now out, I do not yet see a pressing reason to switch to Perl 6 yet.
A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James