well, I can understand German but not that good. Basically I can make out the menu options and stuff, but I want to sell it soon to buy an EMS 4-in-1 (the one I have now has no extra RAM) and the demand for German versions ain't that high I think here in Holland.
By the way, I'm pretty certain it's a Datel one. When I open it up and look at the PCB it says "Datel-#??" ?? being some number.