Jetpack Publicize now supports custom post types, as seen here: http://jetpack.me/2014/01/31/jetpack-2-8-introducing-markdown-and-improving-monitor/
however, custompress in it's design and all, does not use the same stuff as a manually made custom post type. With this new information, what can we do to make Custompress post types, bring the Publicize funtion, into play? Seems like we just need to find the equivalent control spot for functions and add the
'supports' => array( 'title', 'editor', 'publicize', 'wpcom-markdown' ),
Let me know if someone can pinpoint this and see if we can't get a great addition to Custompress working!