From Fedora Project Wiki
Please note that we plan to announce a powerful package search API for Fedora Packages at FUDCon North America 2012 (Blacksburg) that uses Xapien, and our intent was to provide the backend capability for network enabled fast & intelligent searching with useful results. This work would fit in nicely with this feature, and we will be demoing it at that point in time.
- Thu Dec 01 2011 Tom Callaway <spot@fedoraproject.org>