OK, this is an old thread. Posting today, October 22, 2018.
On the XCsoar website it says this about the Oudie 2 Lite.

"The Naviter Oudie is a PNA running Windows CE. Unfortunately, its graphics driver has an annoying bug that garbles the screen and obscures the InfoBoxes. Until Naviter provides an updated graphics driver, running XCSoar on the Oudie is not recommended."
My question is: Is this an old statement that is no longer true?
Can you now run XCsoar and/or TopHat on the Oudie 2 lite?
Thanks for any observations on this subject.