The dynamic aspect is interesting, but I'm not really seeing how this would appeal to a moderately competent pixeller (with the features that are currently demoed).
There are a few things that would be required for me to be interested:
* Outline should be able to use a round kernel rather than a square one, since a square one won't get pixel-clean results for most cases
* Some kind of noise reduction/abstraction filter (in accordance with the general artistic principle 'start general, incrementally make important things more detailed', I don't want to have to remove extra details -- it's much better IMO to add details). If I was implementing this, I would probably use gmic
's Anisotropic Smoothing filter and possibly the Segmentation filter too. They aren't fast enough for real-time use though....