I think it would be very interesting to see how Solidworks would implement something like TSplines. One would normally think of Tsplines as free-form. But i think the workflow could really benefit from the use of parametrics. Imagine picking any 2 points on a tspline and then using a dimension to drive it. I'm currently learning Solidworks, and not really a fan of the workflow. But i think with Tsplines it could actually be very cool...