I read that the wiring bundles have tied knots rather than zip ties, because this gives a less abrasive way to hold the bundles with even pressure around the perimeter of the bundle. I remember an audio of one of the NASA scientist having a first look at the 3D pictures with special googles, and having the real sense of standing on that barren landscape. I think it would be neat if they could have an audio feed, as well as pictures, and hear the wind blowing from the surface of Mars.