http://www.scala-lang.org/node/8610

http://www.tikalk.com/java/blog/simpler-parts-scala

and i think the Pragmatic, Venkat Subramaniam, mid-09 text is still a good intro, modulo the 2.8 stuff:

http://www.amazon.com/Programming-Scala-Multi-Core-Complexity-Programmers/dp/193435631X/