I think a fair question for Leevi is what this will indeed bring to the game that FoxEE doesn’t (or couldn’t) bring. Perhaps, Leevi simply wants to kick FoxEE’s derriere with something better - nothing wrong with that, per Jerry Seinfeld.
I do think a game-changer could be the provision of a simple (ahem) set of loosely coupled commerce-centric CI classes onto which other EE developers can build, um, modules and extensions. Then, a la EE itself, let these addons be free or compete on price as desired by their makers.
I believe it would be essential for the coder(s) to release the framework into the wild once complete, so it is neither owned nor dependent on any single development shop (e.g., it becomes EE open source). The question then becomes how much refactoring of the framework will be necessary and what/who/when that is handled. Ideally, the answer will be, “if well done from the start, rarely.”
I could see contributing to a fund to underwrite this framework.
Of course, I hope Ellis Labs already plans to offer this kind of commerce solution. They are perfectly positioned to do the heavy lifting and provide the framework support to make commerce addons a low-risk investment for developers.
Which raises this additional question for Leevi, “besides the fact that waiting for the EE commerce module is like waiting for Godot, why not give the guys a little more time to reveal their intentions? You know, like sometime in 2019?” The dig is for fun, but the question is seriously intended.