Ios downloadable mods

My Idea is that OS users can be able to download mod straight from the app.
Like the download craft ability, they can expand that to mods as well so a chuck of players are left out of the mix
This can allow a lot of OS players to do a lot of other games cant do, such as enhanced solar system, modular launch pads, etc
As the game grows on OS it will pull in a lot of players from the mod compatibility for the OS, not to mention that players who have Mac or is upgrading to iPhone can have their mods for a continuation on the same save file (like nothing happened).