Since Calais is not an open-source project I'm not aware of the internal workings of the service. I'm wondering if there is some sort of a pipeline the content is passed through, where each step a predefined processor works its magic on the input and contributes to the final output. I may be completely off, but let's assume it is true.

If such a pipeline exists, do you have any plans of allowing developers to create their own processors?

An example of what I'm envisioning is this:

1. I go to my Calais account control panel, and choose to use shopping.com's processor for product normalizations. (I have a key for the processor so that shopping.com can charge me)
2. I submit a piece of content to the Calais service, and my response includes all Calais entities found, with products found by the shopping.com engine

Is this possible in a forseeable future or is it complete pie-in-the-sky?