challenges with the strageties

lots of html scripts, javascript, and Ajax may be needed during prototyping, which takes a lot of time

Ideal solution:
what if the prototype isn't a prototype at all, but the actual code that you would end up using?

If you use this approach, expectation management is key!
they may think by seeing this code that you are 80% done, when you really might be 10%

Key items:
Avoid any server side calls
Make the UI as simple as possible
interactions with server need to be easy to mock and replace

appcelerator demo...