the truth is you sort-of edited notes (you didnt typeset a book), you sort-of edited video (cropping and some minimal effects), you sort-of made a spreadsheet (

the truth is you sort-of edited notes (you didnt typeset a book), you sort-of edited video (cropping and some minimal effects), you sort-of made a spreadsheet (try making an errorbar graph), or a photo slideshow (template-based). Yes they are a portal to computer creativity, a demo, but i doubt someone created a mobile game or learned to make a web page with them.