First I've heard of this.
http://news.bbc.co.uk/1/hi/sci/tech/8601172.stm
Footage of the lift off here: http://news.bbc.co.uk/1/hi/sci/tech/8639539.stm
There's talk of experiments and stuff but as it's military I suppose its primary purpose will be as a weapon.A prototype spaceplane developed for the US military has been launched into orbit from Florida.
The X-37B, which has been likened to a scaled-down space shuttle, blasted off from Cape Canaveral Air Force Station at 0052 BST (1952 EDT).
The military vehicle is unpiloted and will carry out the first autonomous re-entry and landing in the history of the US space programme.
http://news.bbc.co.uk/1/hi/sci/tech/8601172.stm
Footage of the lift off here: http://news.bbc.co.uk/1/hi/sci/tech/8639539.stm