I've noticed that everytime, I leave my home wifi and take my iPhone with me I have an exclamation point only on the ios Home app on the iPhone when I return hoe. This does not occur on the touchscreen or the iPad that stays at home in the wifi. I've come to the conclusion that it occurs when my iPhone tries to connect to another wifi network wherever I happen to be. My workaround is to the just close the iPhone Home app and when I reload it the exclamation point is gone. Is there another solution for this or is there an update coming for the app that is needed.