API Scratchpad for Amazon at Mac App Store analyse

For Amazon Product Advertising API: https://affiliate-program.amazon.com/gp/advertising/api/detail/main.html

Amazon has an official API scratchpad: http://associates-amazon.s3.amazonaws.com/scratchpad/index.html

I dont like the official scratchpad because:

- It is browser based, its not an app.
- It cannot save my credentials
- It cannot save the data I entered
- its kind of complicated

So I build this app. The app has the following features:

- It can save your credentials, you dont need to enter them again and again
- It can also save the data you entered. Restart this app or even restart your computer, you lose nothing.
- It formats the result XML in a easy to read style
- Its very intuitive, very easy to use
- Regions supported: CA, CN, DE, ES, FR, IN, IT, JP, UK, and US
- Operations supported:
- BrowseNodeLookup
- CartAdd
- CartClear
- CartCreate
- CartGet
- CartModify
- ItemLookup
- ItemSearch
- SimilarityLookup