Doug Cutting just reported on the Hadoop lists that the Apache board voted this morning (US time) to make Hadoop a TLP. Until now it has been a Lucene subproject, which made sense when Hadoop was broken out from the Nutch codebase two years ago. Since then Hadoop has grown dramatically. This change will make it possible for a number of associated projects - such as HBase and Pig - to become Hadoop subprojects in their own right. (There are more details in the original discussion.)
Thanks for looking after us Lucene - it's been a great time so far and we'll keep in touch!