The specs are for Longhorn as a whole, not only the search engine. Only the people who have upgraded their computers to play with Half-Life will be able to use Longhorn at its full capacity. Here are the main features as stated in the CNet article:
- translucent videos over videos.
- search engine to slice and dice your data.
- display the cover page of your corporate documents.
- grow bigger than the entire Macintosh install base.