I think Flynn made a leap from his first year to his second year. It was too bad about the injury in the preseason, which prevented us from getting a longer look at him. If he makes another leap this year, he will be a very good backup.
The third year is when Rodgers' game really came together. I felt after that preseason that he was about as good as Favre, and he proved it when he played against the Cowboys during the regular season. I doubt that Flynn will ever be as good as Rodgers, but I do think that the third year is where his game could really come together like it did for Rodgers.