It looks like user interface changes are not just coming to the e-ink Kindles. Kindle for iOS version 6.28 released today has:
- Easily access all settings related to your reading in the updated Aa menu.
- When reading in continuous scroll, use a vertical navigation bar to explore your book without losing your place.
- Use the new Reading Ruler to gain focus and read more easily. Access it via the more tab in the Aa menu.
The first item sounds a lot like what is supposedly coming to e-ink Kindles "over the next couple of weeks."