I was trying out the new archetype, it was failing to download the trails-archetype because the archetype plugin ignores the remoteRepositories plugin. This is a problem with maven 2.0.4.
To remedy the situation...
In your instructions for using the mvn archetype, you should mention that if it fails for this reason to run it with -U after mvn to update the archetype plugin itself.
mvn -U archetype:create
followed by...
mvn archetype:create -DarchetypeGroupId=org.trailsframework
-DarchetypeArtifactId=trails-archetype
-DremoteRepositories=http://snapshots.repository.codehaus.org/
-DarchetypeVersion=1.0-SNAPSHOT
-DgroupId=<your package>
-DartifactId=<your project>
I am unsure if you can do it all in one...
mvn -U archetype:create -DarchetypeGroupId=org.trailsframework
-DarchetypeArtifactId=trails-archetype
-DremoteRepositories=http://snapshots.repository.codehaus.org/
-DarchetypeVersion=1.0-SNAPSHOT
-DgroupId=<your package>
-DartifactId=<your project>