Intellij Idea setup for Scala, clarification needed

Question

Using IntelliJIdea 12, i downloaded the Scala plugin and created a HelloWorld application.

The following import seems odd. Why does IDEA not recognize this to be a S

Answer 1

When creating a new Scala project from the wizard IDEA can download and configure everything for you:

Settings can be changed later in the Scala Facet:

and in Compiler:

Libraries configuration:

Code and imports completion is available from the Scala library: