At least developers will probably want to use it because fees are too low comparing the others.
It's not all about fees. There also have to be enough users. Otherwise, what would be the meaning behind developing something nobody will see and use later on. So yeah, a wide adoption is necessary.
Yes, if there are not enough user, there will also be no developers as developing costs money.
yep, pretty much this. the team will need to intensely promote this app store if they want to succeed.
That's why they will dump all invested money into marketing. They don't need money to develop the app because they have already a company in place, Crypton.Studio
Well I think most ICO funds will go to marketing. If you look at the some of the recent icons the invested money is mainly for marketing, only small parts for IT and Development.
hope also thats the most of the fund will be for marketing.