iOS 7 Keyboard Issues
1] When typing out a word and autocorrected is triggered, parts of the replacement text that is provided by autocorrect, is still applied to the text, and also keeps the last letter. Previously this didn't happen [iOS 6]. In other words, deleting the text before the word is finished, used to cancel the autocorrect. Not anymore.
2] When deleting text, the cursor deletes an extra space if the delete key is pressed at least three times. In other words, even though you press the key three times, it goes back four spaces.
Since i do a lot of writing in the Pages app, this is where I noticed this.