Anash - why all this script stuff. Just get rid of the minimum required functionality requirement in the Adwords API licensing terms.
The threshold for creating applications that use the Adwords API is way too high - it takes WAY too much effort to develop an app that meets that threshold.
Or if it's SEO tools you're worried about, just specify that keyword estimator calls require a separate license or something. I don't understand the business reason for the minimum required functionality, it doesn't make any sense any more - if you're letting people write all these scripts, why not just let them call the API and be done with it?
I'd much rather give an API key to a SAAS product to solve a use case for me, than mess around with all of these scripts. I don't want to become a scripting expert, I want to click a button saying "Authorize" and be done with it.