Decker runs natively on a variety of platforms as well as on web browsers, and it fully supports touch devices like tablets. It isn't designed with small cellphones in mind, but I'm told that it's quite usable on phones that include a stylus. Just as touch support has improved over time, I have some ideas for providing a degree of fluid layout in the future without onerous impositions on deck authoring.

Decker is not a carbon-copy of HyperCard frozen in the past; it's a continuously evolving platform with many interesting innovations and experimental ideas. It has a distinct aesthetic, but I see this as a strength rather than a weakness: "modern" just means "in fashion", and fashions are always in flux.

It's great work what you've done, and as I said, I have no criticism of it at all.

But it's more than a distinct aesthetic, it is a distinctly retro aesthetic. Modern means contemporary, more than it means fashionable (sometimes retro aesthetics are in fashion, after all).

But terminological nuance is not very important here. The fact remains that, as wonderful as it is, Decker is not what I meant, and I don't think you're trying to make it into that either. For one thing you'd need a rather large marketing budget.

But to be sure, I wish you all success, whatever that might mean to you. If that includes transforming Decker into something which looks and feels like HyperCard might today, if Jobs hadn't put it out to pasture when he did, then more power to you.