Maybe this video http://www.youtube.com/watch?v=LZrnUHpQ ... ata_player
tells more than the printed instructions? I am still waiting for the Genius to ship with TTS4, so I dont't know yet. There were no real "manuals" for the Fortius back then either. (But of course function printed on the buttons.)
There's an interesting article on Tacx in first issue of Rennrad
magazine this year. Family-run company of 50 people that make far more products than just the trainers. They plan on just 8000 Genius trainers per year, half in Europe, half rest of world.
These trainers really are a niche product from a small company. I think that writing manuals (even for the only four languages at issue) is quite a bit of effort. So the choice is either delaying sales until the manuals are ready or start selling without manuals. In either case, people will fire on Tacx, so the choice is obvious and manuals always will lag behind. I assume manuals will appear on their homepage as soon as they are written. Guess Tacx are busy with getting TTS4 out and a major overhaul of manuals is due anyhow.