Roundtripping: Stripping JCR metadata

[Dan Connelly]

Is there a handy example of stripper code to eliminate JCR metadata, 
using either a ContentHandlerl or an XSLT?

Seems like there should be standardized way to achieve roundtripping.   
Or, is the stripping task so trivial that the obvious first attempt 
(throwing out properties with jcr prefix) is going to do the job?

      --Dan