WebCt and Blackboard

Another one bites the dust. How will this affect the open-source LMS/CMS out there.
How will this affect the BlackBoard users that have integrated other VOIP systems. Will BlackBoard still support those systems or force those clients to swithc to WebCt?

Who is buying who? And will this be a better solution? In the long run I believe that online learning will be better off. Not saying that the BlackBoard/WebCt merger will eliminate all the competition. It will only enhance the Open Source products such as Moodle to continue to grow and will eventually give BlacBoard/WebCt a run to the money.