One of the limitations of our designers is that it does not support encrypted appSettings entries. After talking to customers, however, we have realized that this it is not a common scenario to encrypt the config sections during design and that it is usually done at deployment time. In fact, an advantage of the new Web Deployment Projects is that it allows you to replace web.config sections with the the encrypted section for the target machine.
What I'm interested in knowing is if you feel that my assertion above is, in fact, incorrect and why. This information will help us reconsider the decision.