Are there any pools or large miners running "child pays for parent" patch?
According to an offshoot reply in bitcoin-talk it appears that the only mention of this protocol comes from Luke-Jr on Github.  Another topic on bitcoin-talk mentioned that his pool, elegeius, implements this patch.

https://bitcointalk.org/index.php?topic=173169.0

On the eligius FAQ page http://eligius.st/~gateway/faq/following-applies-transactions-being-processed-our-blocks

It mentions specifically = Transaction processing/priority contracts are available (talk to Luke-Jr).