What has this Boeing product been up to for 22 months?

[Adam the Akrodude]

The X-37B has just returned after 22 months in orbit doing who knows what. Possible it was testing/evaluating reconnaissance technologies? It's a very long time in orbit just for testing I think. It also appears to have a small jet engine for the landing, giving it a lot more flexibility in this phase of it's flight.

http://www.space.com/27427-x37b-space-plane-air-force-landing.html