Check off a task
1Tap the list containing the task.
2Tap the box to the left of the task name.
View tasks that are due today
1Open Tasks 
. The number to the right of the List all tasks field shows the total number of tasks that are due today or are overdue. The number to the right of each task list name shows the number of tasks in that list that are due today or overdue.
2Tap a task list name to view tasks that are due today or overdue.
NOTE Tap Exchange to view task lists and tasks synchronized from your Exchange account.
Rename a task
1On the task list, tap the task name.
2Enter the new name and press Enter 
.
Sort a task list
You can sort a task list to show tasks in the order you have determined, or by due date or priority.
1Open Tasks 
.
2Tap the list you want to sort.
130 Chapter 8 : Contacts, Calendar, and other personal information