We're not switching for out-of-the-box indexing, because we shouldn't re-distribute solrmarc, or duplicate documentation efforts. Instead, I've fleshed out the Blacklight getting started docs over on the solrmarc wiki (
http://code.google.com/p/solrmarc/wiki/BlacklightHowTo) and I've updated our demo installation instructions to link users to the BlacklightHowTo over at the solrmarc site.