Ok, so i got this idea from the fact that jumppads are pushing you to a specific direction. The idea behind boostpads is more control of direction and speed. Below are the details for sauerbraten.

1. Boostpads define the amount of speed simply in a measurement of m/s.
   First argument defines the speed.
2. Boostpads define whether the speed is added to the current momentum or simply give the player the specified amount of speed.

Second argument defines this property.

3. Boostpads would allow the user to select if they will individually use a sound or not.
   Third argument defines the usage of entity sound.

So, people, discuss, suggest and support, for we may (if we're lucky enough) get a new feature in the release underway! (Which is still far away from done, so don't ask.)