It's a nice idea to have a common app store for all platforms. I imagine the flow is supposed to be: 1) You friend uses Pinterest or Spotify and has a wall po

It's a nice idea to have a common app store for all platforms. I imagine the flow is supposed to be: 1) You friend uses Pinterest or Spotify and has a wall post from it. 2) You are interested so you follow the link to that app. 3) You follow a link to the new app store. 4) The app store provides downloads for iOS / Android / desktop / etc. The point from Facebook's end is that step (3) would currently be a link outside of Facebook. If they can keep that inside, better for them.