I could not reproduce this on my iPhone 5 so I believe this is an iPad isolated bug.
If I go to a post or page, with the intention of appending something to the very end of a story I usually cannot get the cursor to select the space after the last character (which is usually a punctuation mark).
To explain further, in order to continue a post which I've already started, I must continue typing before the period or question mark that used to be the final character or punctuation mark in my post. This is fairly distracting to continue writing a story with and having punctuation already there, additionally it would be difficult to delete the last character because of this.
Since I don't have a way to isolate this error more than: I cannot reproduce this on an iPhone 5, and I cannot reproduce this in landscape orientation, here are the specs of my iPad. iPad 2 wifi iOS 7.0.4. It is jailbroken, I doubt that is the cause but thought I should share that just in case. Wordpress app 4.0.2.
Thanks WP community, keep up the great work. Hope this bug report helps.