I noticed some strange behavior while typing with flicktype. When using the standard English iOS keyboard, shake to undo allows me to erase whatever I have typed. However if I typed using flicktype then shake to undo, a prompt appears that says "redo typing" rather than "undo typing." If I tap that button I am returned to the document but nothing has changed.
I guess this makes some kind of sense since redo and undo are not the same thing. But since the function is shake to "undo" shouldn't flicktype maintain that functionality?