Anyone know why Gmail (in Mail) keeps asking me for my password from time to time on both my iPad and iPhone? It doesn't happen often. But it would happen sometimes, I would wait a few minutes, then it would work again. Sometimes it would also tell me it can't connect to gmail. That's the case when I haven't used the device for long (over night for example). Then I have to wait a while and it would work again. Annoying…