I\'m using sbt 0.10 with Scala 2.9.1.
I\'ve read http://groups.google.com/group/simple-build-tool/browse_thread/thread/792e5360877e78/987b6af687b8e33b?lnk=gst&q=coll
The various "Classpath" keys contain different views onto the classpath, but probably the easiest thing is to modify the sbt-assembly plugin to simply drop the jars into a directory instead of doing the unzip/rezip cycle. The plugin is very small (only 150 lines) and it's pretty obvious from a cursory glance what the right place to change is.