Doing this survey using N900 + Fennec (nightly build) on a 3g connection is a pain. Switched back to microb but also in this browser it's no fun. It's a pain to bring the "sliders" into the right position. If you tap and hold the website moves never the slider! It always was just luck to hit for example 6 out of 10 points as answer for a question.

Please provide a "mobile version" of the interface next time.