As a user, It would be nice to have apps (or whatever they are to be called) with post-installation settings that I can configure. Like if I want to change the color of a calendar element or the number of blog items per page. Something like
[[include outsideSiteName settings=mySettings]]
where mySettings is a page in my own site that has, you know, a list of some settings, which I could reuse wherever I included this building block… If that makes sense.
Also, putting all these building blocks in one place would be cool. It's kind of confusing. When did templates become apps?