As mentioned on Digg : Finally Ubuntu will add fast indexed search Tracker to Gutsy
This means Gutsy tribe 4 will ship tracker in main and be on by default :)
This has been our number one goal (as ubuntu is my fav distro) and its real great for tracker to get the recognition it deserves. It should also mean that tracker will be thoroughly integrated into ubuntu with nautilus and deskbar support out of the box (in the future we will add Rhythmbox and Epiphany support too so they can benefit from tracker - just need XESAM to be implemented first)
Its also not just about search as tracker has one big advantage over nearly all other indexers - its a metadata store that can deliver a semantic desktop with tagging, shared metadata, big performance improvements and a host of features that will help deliver a next generation desktop (see my guadec slides for more info here)
I just can't wait to integrate it more...