o Have maximum speed and acceleration per axis.
o Don't scale accleration to euklid length, but attempt to keep it
  as fast as possible without exceeding any axis' limit.
o Nicer help output.
o Add convenient axis mapping, if the motors are not connected in the
  same sequence as XYZ suggests (e.g. if you connect the Y axis to
  the two-motor plug on the RAMPS, originally meant for Z).
o Configuration tip: storing flags in a file.