Even if this app is problematic from a cross-platform or usability standpoint, the fact that people are making real investments in re-thinking our design tools for different contexts is very exciting. I can't wait until we get some better audio, video, drawing, and animation apps built with mobile in mind from the ground-up that AREN'T indie silos of interactive design and file formats. I know people will be itchy to give me some recommendations here, but I'm cynical about it because everything I've seen, so far, is "neat but not for team/studio production" for some reason or another. So it's nice to see something that is absolutely certain about how these things actually get used in the industries, and is willing to strike a new path, while focusing on what is required for industry interoperability.
Once other people start picking up on this idea, we might get some really awesome new ways for people without specific domain knowledge to be as creative in their output as they are in their own heads. That will be pretty awesome, I think!