I don't get the point of the last few pages of this discussion. Is comparing features of Google Android and Google's attitude to features of sailfish and Jolla's doing business really the intention of the original discussion?

I am really interested in good and reasonable arguments why having paid apps is a driver for having good apps, making more features available and making development progress better.
And those questions should be answered by common sense, not by "look at how google and apple does it"

In the past years I have come to learn about linux and open source especially with my N900. All I could see is the benefit of people working on a problem together to get the best results. And to have variety you don't need to start your own from scratch, you can fork most of the times.

And there is another issue of paid apps I don't get. You can only have people pay if you keep the app's source closed. Otherwise anyone with a little knowledge could just make. But if you keep the source closed, who could review it for security issues?

sidenote: This actually is something that bothers me already with sailfish as before I had garage.maemo to look up sources if I needed to. And for putting an app to extra you would need to have someone review what you where doing. Is openrepos offering something alike? /sidenote

Last week I have read an article series about android apps and what they do (has been tracked by network actvity via wireshark) and who is getting my data. It really scared the creeps out of me. This is because most android users don't care and because the platform is designed to hide such data grabbing (well it is initiated by Google, right?)

So my bottomline is: we need open source and the best financing for it is funding/donation. You couldn't make a living from payment anyway. And the thinking a platform can only be successful if there is payment has been introduced by companies who get their share from other people using their platform for selling apps. Who do you think wins most on that? The developer or the platform provider?