In the past openSCADA was built by ant, then by maven and finally using the Eclipse PDE build. While still we think that the PDE build is much faster, more reliable and easier to handle (once you set it up) with Tycho it became quite easy to create your local build. So we added the POM stuff again, this time using tycho and a small tool we created on our own to ease the pain tycho gave us.
But now the base projects aurora, jinterop, oxygen, utgard and atlantis can be built using maven/tycho and the artifacts can be also be consumed as a maven2 repository (http://repo.openscada.org/maven). Only the dependencies are not present since tycho does not generate these for the POM files.
But since the build times with maven are about 5 times longer and maven has so many issues, the PDE build will remain the primary target for us. The maven repositories will be built in the nightly build phase and published afterwards.