I like the idea, although I think it needs a little more work. For example, if we are going to implement Get methods for arrays of primitive types, it makes sense to provide them for all (GetIntArray, GetStringArray, ...).

Also, a couple of things I'd like to see along with the code changes to the library:

• Unit tests. For example, what happens if the JSON string is something like [ 1, 2, "c", "d", 5 ]?
• Examples of how this would be used, to add to the documentation.

But as I said, I like the main idea behind this, so I'll probably help you implement this when I find a little time. Thanks.