Wow! I just figured it out by accident!...When in calendar and you hit the month button, and are now in the month with day list display under, you cannot toggle back to full list view. To get back to full list view, tilt to landscape on phone. This makes it display the week view. While staying tilted, double click home to bring up switcher and close calendar app. Tilt back to portrait and reopen calendar app. It will be in full list view again!...Weird...wonder why they didn't make this a selectable icon or toggle or something obvious! I've been banging my head since b1 trying to figure this out. Hope this helps someone!