Snapshot vesion are available on this maven repository:

        <repository>
            <id>maven.openmole.org</id>
            <name>OpenMOLE repository</name>
            <url>http://maven.openmole.org/public/</url>
        </repository>
        <repository>
            <id>maven.openmole.org Snapshots</id>
            <name>OpenMOLE snapshots repository</name>
            <url>http://maven.openmole.org/snapshots/</url>
        </repository>

Beaware: OpenMOLE relies on equinox so you should integrate equinox within your application. We will put effort on OpenMOLE integration in a near future.