Interesting service from Amazon, they’re obviously going for business from a security point of view. However users won’t like it (and users are the boss) if the user interface isn’t intuitive and easy to use. MS has MS Outlook. Google have the Gmail interface. Amazon have…what?
The article says the Amazon service will sync with Outlook but it won’t be as rich as an Exchange sync (MS just wouldn’t allow that), perhaps it’ll be a compromise like the Google Apps sync tool?