Our external maintainers [1] effort has been extremely successful so far: thanks to the great help of the Scala community, several previously neglected components of the Scala system are being refreshed and improved at a surprising pace. However, we are still looking for help with a few remaining modules. Specifically, our XML infrastructure [2] would benefit from some updates: if you are an XML wizard, and you are keen on Scala, this is the right task for you!
If you are unsure about maintaining a whole module, you can of course look at our Trac database [3], where in particular several smaller issues are assigned to scala_community [4]. Just investigate any of the open tickets, and start writing your code; you can easily obtain from here the Scala source code [5] (also from SVN [6]) and set up your development system [7] (also using an IDE [8]). The rest of the Scala community [9] will be happy to assist you with your work. All contributions are welcome!!
Links:
[1] http://www.scala-lang.org/node/292
[2] http://lampsvn.epfl.ch/trac/scala/browser/scala/trunk/src/library/scala/xml
[3] http://lampsvn.epfl.ch/trac/scala/query?status=assigned&status=new&status=reopened&col=id&col=summary&col=status&col=type&col=priority&col=milestone&col=component&desc=1&order=id
[4] http://lampsvn.epfl.ch/trac/scala/query?status=assigned&status=new&status=reopened&order=id&owner=scala_community&desc=1
[5] http://www.scala-lang.org/downloads#
[6] http://www.scala-lang.org/node/213
[7] http://www.scala-lang.org/node/217
[8] http://www.scala-lang.org/node/91
[9] http://www.scala-lang.org/node/199