Apple will probably never let this happen, but it doesn’t hurt to ask. Say you’re sick of the Maps app not having public transit directions. Instead of recommending third-party apps, as iOS 7 does now, let users to choose which apps they would like to load by default, whether it's Google Maps or Waze. I mostly like the new Safari in iOS 7, but I should be able to make Chrome my default choice.
More: 25 Best iOS 7 Apps