Ooof, I tried the Dutch Duolingo course, and I had the exact same problem as you guys! Glad it's not only me >.> Only got to level 9 because certain linguistic characteristics weren't recognized >.> Certain translations which were technically correct weren't seen as such, and of course, the voice is wonderfully mechanical... but I'm still glad they have a Dutch course. It's pretty good, all said and done. It's for learners, after all, not native speakers.
And oooh, that virtual keyboard site... I'll be off playing with it now, thanks. *disappears*