Despite not yet available for TECHNIC models, I thought it worth to mention it here.
A couple of Engineering students from "Department of Computer Science and Engineering" at "INESC-ID/IST/Technical University of Lisbon" developed a system to create LEGO models using sketches.
The LSketchIt is a calligraphic tool for creating LEGO models that uses sketches and retrieval to ease and speed up the modeling process.
The result of this work was a prototype and one paper which were presented at Annecy (France) in the "fifth Eurographics workshop on sketch-based interfaces and modeling".
The prototype was based on the LeoCad system and supports ldraw files (.dat, .ldr). Regarding the user interaction with this tool calligraphic interface, it is made using sketches, mouse gestures commands and relies on a strong part retrieval algorithm.
See one video demonstrating this innovative interface below, which was previously also tested by a few PLUG members.
... certainly something here that deserves further investment and additional development trying to expand its applicability into additional LEGO themes according to their specificities.
IMHO, these are the kind of small advancements that makes the world move forward.
According to the authors words on the paper abstract,
If you have interest for reading scientific papers, you may find it here.