http://www.techcrunch.com/2006/10/20/google-acquires-spaceshipone/

Not true.

http://www.space.com/businesstechnology/ap_051005_sso_smithsonian.html

its an "unsubstantiated Google rumor" –

OK, that's why I see pictures of Space Ship One on Flickr with the tag "google"...

http://static.flickr.com/119/275532382_2e0d69203c_m.jpg

http://static.flickr.com/118/275532379_1c05738740.jpg

http://static.flickr.com/109/275532381_f5ff933662.jpg

http://static.flickr.com/119/275532382_2e0d69203c.jpg

[buggy links -> pictures]

(damned bug with flickr URL :-[)

Wrong title, should be: "Rumor: Google to buy SpaceShipOne?".
Why would Google buy it... This is some lavish spending...
Boeing 767 is okay, but a space ship is .... errr.

Google did not acquire SpaceShipOne. But they did acquire a full scale replica of the ship and have indeed installed it in building 43 at Google... Read on for more info :
http://www.digg.com/tech_news/SpaceShipOne_Mystery_Solved