Re: 3.1.a All linkage info in markup not data?

> 3.1.a Should we have a principle that all linkage information is encoded in 
> GIs and/or attribute values, never in character data? 

It would make parsing (and thus the writing of XML apps) much easier 
if this was so, and I think that's what we should encourage. Providing
an additional way to do something just complicates it, unless there is
some serious tangible benefit.