Thanks for the compliment!
Test Analytics is agnostic to the type of data you import -- we have a generic representation of a bug, test case, et cetera that you can import from any external source. I'm going to post some sample code and some docs on the API to do so. I won't have a TFS or Visual Studio importer, but following along with the examples, it should be fairly trivial to create one.
Tests, once added, can be associated with capabilities via the Capability Details page or via creating a Filter.
Iteration / timeline support is not yet supported, but a known feature that's necessary to get full value (by letting you view your risk deltas over time).
- Jim