This version is a lot faster , is a lot more stable and provides a good Lucene based search engine. It's a good foundation for all the RDF / Semantic and Feedback/Learning features we have lined up for version 3.
It also can be used in a number of ways - from a personal search engine (want google desktop search , but are running Linux or a Mac?) , to Intranet Search , or Integration with your development projects (it's written in Java/J2EE , but will successfully integrate with .Net , Perl , PHP and any number of Web / Command-Line / Other clients such as Eclipse and Flash.
Have fun and let us know how you get on .