This modification to the object.py module will accomplish what you are asking for. This modification only needs to be made for rs.MoveObjects and then both methods will allow you to pass in a tuple of two points, like this: rs.MoveObject(objectToMove, (point1, point2)). This may not be Steve approved, but it will work.
def MoveObjects(object_ids, translation):
"""Moves one or more objects
object_ids: The identifiers objects to move
translation: list of 3 numbers or Vector3d or
tuple of a start point and an end point.
List of identifiers of the moved objects if successful
if type(translation) == tuple:
if len(translation) != 2:
to_point = rhutil.coerce3dpoint(translation, True)
from_point = rhutil.coerce3dpoint(translation, True)
translation = to_point-from_point
translation = rhutil.coerce3dvector(translation, True)
xf = Rhino.Geometry.Transform.Translation(translation)
rc = TransformObjects(object_ids, xf)