Great
I really liked it, was a little hard to find the markers sometimes though, but still enjoyable.
I've never played the pc game you mentioned, but this game reminded me exactly of a skiing game that was either on the Atari or Intellivision I used to play when I was little, pretty much exactly the same (tree/slopes/rocks etc), so maybe the pc game was a clone of it, or maybe not; either way, definitely brought back some memories =P