installed Kindle app on iPhone; have downloaded some of my books & synced to furthest page read. it’s neat. predictably, not as good a reading experience as on Kindle by a mile. pretty marginal bookmarking, no notes, search, etc. so really underpowered.
but i think useful if i’m somewhere and forgot my Kindle, absolutely, and i’m sure that i’ll buy books with it to read a snippet then really read on my Kindle.
expect this to cause them a real spike, then things will settle down. really needs a lot more functionality; and the reading experience will never be anywhere near as good.
but a solid & useful complement.