iTunes Problems Resolved
I received feedback from two listeners, Ward and Kevin, that they were having issues subscribing to Manager Tools via iTunes. After some research, it turns out that indeed iTunes version 6.0.2 has a problem accepting what should be valid XML in the RSS feed. Apple is working on fixing the problem, but in the meantime, I've modified our feed to work properly with iTunes 6.0.2.
So, if you've tried recently to subscribe via iTunes and were unable, please give it another try!
Ward and Kevin, thanks for taking the time to bring this to our attention!