My biggest complaint with AFPD and Reflex has always been the user created planes. They never feel right. There are a few exceptions of course but when I started digging into making them myself I learned that most user created models had the wrong dimensions, thrust, etc. You think you are learning how they fly but you are actually learning bad habits.

I won't mind one bit if FS-One never allows users to create planes, as long as they keep a steady stream of new models and scenery coming.

On that issue I would like to make a suggestion. Instead of releasing planes and scenery in packs you should really consider offering them on a per plane/scenery basis.
From a stricly business perspective, PC software developers and Microsoft (Xbox360) have proven that Microtransactions work and take in a substantial amount of money. People will not mind spending a dollar or two on a particular plane or scenery they want but will hesitate at a $30 pack that only includes a few models they really want. That seems to be the direction that software is going. And since I'm dreaming here!!....I would like to see the Microtransaction interface in the application. Make it EASY to get planes and scenery in.

I'm sure this won't happen but it can't hurt to ask...