The iPhone 4 was my first smartphone and I still mourn after it because of its perfect size for my likings. Unfortunately I lost it while paragliding at Wasserkuppe in deep snow.
Also, has anybody noticed that there is a HUGE gap in the market as of right now with small smartphones? Look at the search function of GSMArena for example: When you try to search for phones roughly the size of iPhone 4 or even iPhone 5 (ca. 125x60x10mm), there are like almost none. Believe me, I did this search in very many variations. And don’t even ask about “special” prerequirements, like an up to date OS, or removable battery. So a phone this size would have almost no competition whatsoever, and I can’t just believe that there is no demand for that.
You think it is the perfect size FOR YOU. An additional model would affect you barely if any.
See it like this: Instead of buying an completly new phone when your SoC is out of date or doesn’t support the newest OS, you can SAVE 24% of CO² emissions, by updating just your motherboard.
While this is assumably true in general, a second model with similar specs does not neccesarily mean that they have to manage the double amount of modules. You could design both models in the way that they use the same modules. While the smaller one maybe just be missing a piece, or simply having a smaller motherboard and/or battery to compensate for its size.
So to draw a line under here:
Yeah, I too would like a small and handy phone with similar features as the FP3 has.