It works that way for videos. If I purchase a movie from iTunes it gives me the options to download it or not. The movie is available to stream (actually watch

It works that way for videos. If I purchase a movie from iTunes it gives me the options to download it or not. The movie is available to stream (actually watch while it downloads, but the difference is indistinguishable) from other devices, so a similar option to avoid downloading the app into iTunes and get badges for updates would be nice.