Just for completeness, I thought I would contact the answer you received on YDN:
http://developer.yahoo.net/forum/index.php?showtopic=3993&st=0&p=10927entry10927
y.rest() , followRedirects (false):
use 'http://javarants.com/yql/javascript.xml'as j; select * from j where code='response.object =
y.rest("http://feedproxy.google.com/~r/Techcrunch/~3/P-%5FqWQXyAPU/").followRedirects(false).get().headers.location;'