Alternatives include the following:
- Open Report V2 (http://code.google.com/p/openreportv2/) - newcomer?
- ReportServer (http://reportserver.datenwerke.net) - seems like not very popular based on the number of postings on the forum
- OpenI (http://openi.org/) - doesn't look comfortable ...
- ART (http://art.sourceforge.net/) - looks ok to try further
