Every app delivered on this store must go through the same review process whether it's internally built or not. This has led to healthy innovation on the app store and deep empathy for the 3rd party developer.
To be fair, it is possible to ship components that are part of the core platform outside of this mechanism, but I think just having one subset of internal development go through the same review/approval channels as 3rd party apps has been very positive for our developer community.
I'd love to see the same thing here.