Update 01.020.005 has been released. We have synchronized small floating objects in Multi-Player, implemented new sounds and added the option to send items automatically from the Refinery to the Assembler when they are built next to each other and share a conveyor door.

http://www.youtube.com/watch?v=YMdD7cQrOX4

Full list of new features and fixes: http://forums.keenswh.com/post/update-01-020-005-6787656?pid=1281801548#post1281801548