When browsing store listings, it would be useful, for installed apps, to be able to launch them there and then, instead of having to go to the library.

There have been a number of times when I've been browsing the store that I decided to stop browsing, and have wanted to launch an installed game there and then.

Currently the user has to go to the library, and find the game they want to launch. This takes longer, as the user was already on the app / game they wanted to launch when browsing the store.