Step-by-step checklist for iOS I am looking for an app that works on the Mac as well as on the iPad.

At work we have daily tasks that do not occur on a set schedule (aka they are on an as needed basis).

This app would allow us to create checklists for these tasks (think pre-flight checklist for airline pilots) that would be "resettable" and reusable. 

Any thoughts?
There's a ton of different ToDo list apps out there. Personally I have used OmniFocus and ToDoIst.
OmniFocus


(subjectively) the nicest interface
sync between platforms with the free OmniSync Service
"Apple" (iOS and OSX) only; not on Windows or Linux; no web interface
not cheap
ToDoIst:
available for all kinds of platforms, including a web interface
free version to get started; premium version with add. features
"template" feature might help you implement and re-use your checklists
tasks can be shared between / assigned to ToDoIst users