The question,
which I think is important, is how to safely use a small, fast MicroXML
parser--rather than starting to use it, throwing away the results, and
falling back to an XML parser.
I don't see faster parsing in contexts where arbitrary XML is expected as being part of the value proposition of MicroXML.
Ah, well. It appears that this proposal is targeted
primarily-nearly-exclusively toward bridging XML with HTML5?
That's only part of it. But I also think there's significant value to having a subset of XML that provides most of the utility of XML but is much easier to understand.
James