Allow pages along with all the apps on a page to be shared
Currently an app can be shared and used on other pages or pages of subsites. This is great until you have a page that has 10 shared apps on it that you want to share with 20 subsites. This now involves creating a page on each subsite, then adding each shared app one by one to the page. (this is 200 app adds for those keeping score).
If you "copy" a page and then move it to a subsite, the apps do not stay shared, so that is not an option either. Allowing an entire page and all its apps to be shared as is would be great!