I've just posted a
notice in the iOS reader applications thread explaining that when the new Apple 5c and 5s iPhones are released later this week, I will need some diagnostic information before the new phone will work with the iOS reader applications plugin.
This also affects Marvin XD users. If you are trying to use Marvin with calibre and you're unable to connect, please follow the instructions in that link to post the diagnostic information that I need.
I will provide updates to the plugin as quickly as possible.
G