Zenwit
It would be nice to hear some of their first amp models completely scrapped and re-made from scratch rather than being "tweaked" in an upgrade. I'll bet they'd sound a lot better.
This is what I believe Line6 has done, with their new HD boxes... "Yes they are a metal box, or a floor computer," but imho, the line between actual hardware/software is way blurred here.
Anyways, "according the Line6 website," they claim to have done their largest research project in 3 - 10 years, and have provided 25 ( HD 500 ), "written from scratch," models. IMHO, "that is new technology."
Amplitube, Guitar Rig = Legacy modelling.
In other news: I have tried out the new S Gear. Its absolutely beautiful sounding in terms of articulation, and speaks, and delay and verb. However, it is a little, "bare bones," and also for my tastes, "I can't get the modern hi-gain, that I love." It does sound beautiful, if it has enough gain, and enough tools inside of it for anybody, "than its worth a look." Really, really, "boutique," sound on that one.