Yes, they exist in almost the same form with some minor variations in the names but the results are the same. Also, from what I hear the JMS implementation (MII Msg services rely heavily on this component) in the 7.31 release seems to scale better than in 7.11 but there are some notes out there explaining why various patches need to be applied even in the 7.31 environment to properly scale the JMS implementation out...further details are available via this community page: http://scn.sap.com/community/netweaver-as
Also, the development support component for JMS is: BC-JAS-JMS
Hope you enjoyed the holidays,
Sam