Making desktop apps look and feel like web apps.

This is a good point. However, it does seem like web and mobile apps and their ilk are the future for the bulk of software the majority of people use (excluding, let's say, "Pro" apps like photoshop, excel, dev tools). I'm not a huge fan of this, but the times have changed. I'm not sure that traditional desktop apps are really what I'd use the hypothetical framework I described to build.

Something like my business expense tracking app, though? If I wanted it to sync and be functionally identical to the app on my phone? I could see this framework being used for that.