There is a initial package available which formerly was part of kuroo itself. It is only the watcher application compiles and works as before. Here you get the ebuild: http://tux.myftp.org/kuroo/browser/ebuilds/kuroo_watcher-0.20.0.ebuild Works fine for me, but would be nice to see in portage...
The ebuild is updated with rss dependency: || (kde-base/dcoprss kde-base/kdenetwork) http://tux.myftp.org/kuroo/browser/ebuilds/kuroo_watcher-0.20.0.ebuild
Well seems as upstream won't continue this package...