All this talk about how the words are somehow holier if they’re in a printed book than if they’re digital seems a little silly to me, sorry. I have to admit though, I prefer printed books- nothing like feeling the pages between your fingers. That goes for siddurim, but also for secular books- I don’t really like reading anything off an e-reader, I just like books better.
My husband does not like davening from his Droid because he is easily distracted. He does still have the app though because it can come in handy in situations where he needs to daven but has no access to a siddur for whatever reason.
Anyway, it’s not like we have to worry about printed siddurim going extinct or anything. As long as we Jews are keeping Shabbos, we will have a need for printed seforim 🙂