Dear Brett,
I actually think you've handled this great. By retiring, you let me mentally move on to the Aaron Rodgers era (*shudder*) and now, a few months later, I'm actually excited at the prospect of watching you play for another team. It'd be amazing, actually, to finally be able to watch you play without caring about how a dumb interception might cost the Packers the game. Have as many 3 TD, 3 INT games for the Ravens as you want; I'd be tuned in every week with a smile on my face.
Going to a NFC team would be awkward, though. Try to avoid that, k? Montana and Chiefs is a good model. (And he's still considered one of the greatest ever, right? So, yeah, ignore all that 'tarnish your legacy' nonsense.)
See you on Sundays!
pixote