Many Calvinists like to try and pin the pre-destination label on Lutherans. I think maybe the Calvinists are just a little lonely in their corner of Christianity and are looking for someone else to huddle with.  

In tune with the last post here is another blog post by the CyberBrethren blogger on that topic. http://cyberbrethren.com/2009/12/16/refuting-calvinist-claims-that-luther-taught-double-predestination/ It does a pretty good job of refuting the claim that Luther believed in pre-destination. The post is pretty long, at least by my standards, but is worth the read if you are interested in this topic. I especially like the t-shirt shown.