Ask HN: Features for our Enterprise App Store?

My company -- a Fortune 1000 company in the financial sector -- has developed a dozen+ mobile apps in-house. Some of them are targeted at all of our employees, while others are aimed at a specific group or role. Since our application base has now gotten rather large, we're looking at designing an Enterprise App Store to distribute these apps to our users. The app store will consist of a front-end application, similar to Apple's AppStore, as well as the backend services necessary to make it work.

My question to you is, what features should we include in our app store? At a minimum, we have outlined:

* Search and categorization, for easier app discovery

* Commenting and rating, to get direct feedback from our users

* Push Notifications, to inform users of new versions of an application

* Role-based Access Control, to ensure that users only see apps that they are allowed to install

Beyond that, what types of features should we include? Obviously we'll have the basics, like displaying app details and screenshots. But I'm curious what other features and functionality could be beneficial for our users.

As I mentioned, we currently have a dozen or so apps deployed. We are iOS-only for right now, but are in the process of porting several of our apps over to Android. We also plan to grow the number of apps we have deployed to > 25 this year, maybe even more.

I'd love to get your thoughts on the matter, and hear any real-world experiences and insights you might have.