in the attachment you will find a quick-and-dirty Relax NG bundle. it doesn't do much, apart from syntax highlighting for .rnc files (the cool "compact" version of Relas NG) and a few snippets for attributes, elements and common datatypes (the ones I was using, actually :).

afaik nobody else worked on this stuff, so it might come in handy if you end up working on huge rnc files (beats xml schema by a HUGE margin). the little I've done is in the public domain, so use it as you see fit.

cheers,

d.