Agreed. Once you’ve spent any time at all typing with one of the custom keyboards found in apps like Writing Kit, iA Writer, and Byword the default keyboard begins to feel a bit antiquated. Heck, I’d love it if we just had left and right arrow buttons.
Speaking of which, in Writing Kit the left and right margins of the app are tap targets to move the cursor to the left or right, respectively. This is a feature that first appeared in the app, Writings. And it’s akin to Pull to Refresh, in that it instantly feels natural and once you’ve used it you notice that it’s missing in every other app.