Thanks for asking in the forum, @sfossimo. I’m also very interested in having Sailfish OS with Android-App support. At the moment I use the original FP2-OS and will only switch if Sailfish OS is officially supported with all features (like Dual-SIM etc.).
1 - Concerning your first point: I’d also be a little sceptical about the integration of online shops in the user interface. I don’t know how this commercial feature is used in current Sailfish-Devices, but being placed to prominent without the possibility to be removed (let’s say: from the Homescreen) would be to annoying. So, I have to agree with the other comments.
2 - Nevertheless: if you wanted to do such cooperations with online stores and only preinstall their shopping apps, I guess the ethical-shop-scene is too fragmented in Europe. You need different ones for different countries. I could only speak for Germany. For me, the only “bigger” stores with an ethical/ fairtrade approach that come to mind are:
– https://www.avocadostore.de/ - a joint marketplace for ethical fashion.
– http://www.memo.de/ http://www.memolife.de/ - everyday products and especially office supplies
– https://www.waschbaer.de/ - quite similar to memo, less office focus though
– http://www.manufactum.de/ - long enduring products, focus hardware
3 - As I said: I would prefer not to have ads but pay some amount for an official version. 20€ would be perfectly fine with me, the 50€ mentioned by @jaywalk sounded rather high when I read that. Yet, on second thought it probably depends on what you get for that: for the 3rd party parts about 20€ sound reasonable. But on top of that I would love to have some kind of guarantee of constant updates and further development of the OS - so I would pay more for that. I think it’s crucial, that Sailfish OS for FP2 will be up-to-date for at least those 5 years that FP aims to have the phones used (and I also intend to use my phone that long).
4 - Well, there is always the possibility of crowdfunding, of course. I think the joint efforts of Jolla and Faiphone match together perfectly. For this joint venture I would think that there should be organisations with similar values that might be convinced to help, be it with some sort of technical support or maybe even with financing.