@hansel: This might be a daft suggestion but is it worth you guys setting up a few accounts with each of the major hosting systems set up on each? Then you can publish the actual configurations and code used and people can make requests of them of both dynamic and static content to compare the behaviour with their own configuration, in case of problems.
Nothing fancy, just a few "hello world" functions for dynamic responses and a few text files or images for static content. Tutorials are great; examples and tutorials are better; working examples and tutorials are (arguably) better still.
That way people could (hopefully) check for themselves that it works so they know they're making a mistake rather than there being some issue with the hosting. Hopefully this might filter out the support load, especially as PA becomes more popular.
Just an idea to throw into the pot! (^_^)