Cozi Calander works and will fill in the full screen of the Gtab perfectly also widgets for it work (its a shared calander/to do list that will automatically sync between phones..my wife and i use it. She adds to her calander and minute later i have it on mine..i add to the grocery list and seconds later..she has the the list. Its a great way to merge/synch your calander, grocery list and to do list between family members).