Really nice work and interesting to see different apps integrating. Something I will be doing in future.
TG2 is primarily a landscape generator. Sure, it could do more in other areas but you have to consider that different apps are needed because different work flows are necessary. TG2 is based on graph nodes. This is what you want for a procedural texture and surface engine. Other apps where you might be doing modeling or animation, need a completely different UI. For example I use Modo which has a Photoshop style shader tree but with lots of easy capability for masking, blending etc. Easy, fast control over each materials transparency, reflectivity, shadows, etc etc. Not much procedural power but ideal for arranging displacement, bump, diffuse maps etc. Very powerful in this respect. No node graph needed for this. It would actually complicate the work flow. In my opinion it's the work flow more than anything that makes these apps specialized. ZBrush for example doesn't use Open GL for it's realtime view. It harnesses the full power of your CPU to give you maximum realtime view power when you sculpt. An animation or modeling app is best based around Open GL for speed rather than detail. For example Modo, but this means Modo's new sculpting tools, although useful, are not a patch on ZBrush. Again, different solutions for different work flows. I don't use Photoshop or Gimp or such like app to post edit photo or render levels, colours etc, I use Lightzone which is far superior and specialized for these sorts of tweaks.
