Last night, I presented a talk entitled "Scala for Java Programmers" at the Ann Arbor Java User Group.  I have posted the slides at http://srtsolutions.com/content/ScalaForJavaAAJUG.pdf.

This talk had its origin in a workshop that Joel Neely and I did at the Java Posse Roundup last March.  Joel presented this talk internally at FedEx, and I presented it at Chariot Solutions' Emerging Technologies for the Enterprise conference in Philadelphia.  I recently updated it for the AAJUG talk.

I didn't even touch on generics, traits, classes, and objects in this talk.  So I've posted my earlier talk (from CodeMash) which included information about these as well:

http://srtsolutions.com/content/ScalaCodeMash08.pdf