Is "X10 Pi Hub" a new software I'm not familiar with? I asked Google, but nothing popped up.
No the X10 Pi HUB is not a new software. Although it could be I have no intention of creating something already available.
The Idea is to utilize existing software that works on a PI and create an easy to install X10 Pi setup for a Pi Zero W.
There is no need to even create a new hardware with a Pi inside. Although that also would be possible it is not my intention.
The Pi Zero W can be picked up for under $20 you can put it in virtually any case or get the official case and Power supply for a few dollars more.
I think "ease of install plus ease of setting up" is key to getting lots of people on board. Most people don't have the time, desire, or frankly, the aptitude, to learn how to put all the pieces together. Although I'm not a customer, I think HomeSeer came up with a good option with their $200 Pi3 based controller that's well supported. While it's not cheap, it's not expensive either.
I think that your idea to create an X10 image would bridge the gap between HomeSeer and a "roll-your-own" by providing a working base to enable one to get right down to using rather than developing a basic controller.
My idea is to put together a small beta test group to test out the software ease of install and setup.
The final result being a Zero W image that installs the software with a simple basic X10 setup already ready to go for a cm15 or cm19 but hopefully for the cm11 or any thirdparty x10 controller that is capable of running from a Pi Zero W.
My idea is to have novice and newbies to the Pi world in this user group as well as a couple of experienced with x10 & the PI.