Hear me out: a reading app that allows for reading ebooks purchased from *any* source, and the ability to transfer books from one app to another (fine if not on both devices at the same time), say, so long as I use the same email/phone for them or whatever.
This is totally *not* a rant about something named Kindle. 😉 I shouldn’t have to use several different reading apps because some books weren’t available on every store.