yes, i am having the same issue witha client site.
i implemented the publicise features yet -- thanks for the reminder! -- but when i went to the jetpack dashboard to transfer abc.wordpress.com blog subscribers over to abc.com self hosted, i saw the notice of a problem. clicking on the notice took me to this:
"XML-RPC is not responding correctly ( 408 )"
which i then debugged by doing this:
"Check your XMLRPC file. You can do this by going to your web site URL and adding “/xmlrpc.php” to the end (without the quotes). When it loads in your browser, you should see “XML-RPC server accepts POST requests only.” on a line by itself."
and received the correct return.
i checked my jetpack connections on my own sites on dreamhost and the notice is not there.
