This Week on C9: Visual Studio 2010 week, Silverlight RC0, and Cloud services

[FYI - It's actually Anil RV's test, not Alvin Ashcraft's test]
If you've looked at the test though, it doesn't test streaming XML from a filestream, instead it tests building an in-memory XML document dynamically. That's not to take away from your point, it's just that the test is only for in-memory XML document creation.
It would be great if you could build your own micro-performance benchmark on loading XML from a filestream to see the performance advantages/disadvantages of XMLDocument vs XElement (and probably XMLTextReader which I would think should be
the fastest).
Cheers,
-Dan