i just installed b15 and updated to the bundles svn to 1359 (and additionally did a fresh checkout, to make sure) and now markdown doesn't show any syntaxcoloring at all, regardless of the selected theme.
deleting the customized version of markdown.tmbundle from ~/Library/Application Servcies/TextMate/etcpp. didn't help either...
any ideas?
t.
p.s. otherwise I'm rather pleased with b15!! adding polish, allan!