It seems that lots of people were keen to try out iTunes 4.9 and the sheer volume of downloads was why a number of the podcasts were timing out. I tried them today and they all updated fine however there is an intermittent issue where iTunes complains that the podcast isn’t a valid URL, but then an hour or two later it works ok again. Now if I can just figure out how to add some unlisted podcasts to the subscription page, I’ll be sorted.