You didn't mention your device but HTC has 2 in their app hub that are pretty decent. They are simply called "lists" and "notes".
You have the free notes in the Office instalment, which works perfectly for me with being able to pin the note you created to the start which allows quick and easy access for reading and editing.
Not sure on a given solution that supports synchronisation with Windows Live Tasks. But you can spice things up with Noborizaka, it is a real-life RPG where you are awarded experience points for completing tasks and completing goals. You create the tasks, start and stop depending on when you do them, and mark them as accomplished.
Billings Diesel & Marine ServiceWhich shipyard?
Billings Diesel & Marine Service
Stonington, ME
Billings Diesel and Marine | Boat, Yacht and Commercial Vessel Building and Maintenance
Do you know the area?
I can't believe that Microsoft wouldn't design WP7 to fully sync with Outlook Task. I'm a Proj. Mngr at a shipyard and subsequently are a heavy user of Task to keep jobs on track. It makes one wonder, why is it called an upgrade from WM6.5 to WP7 when you loose essential functions if you do upgrade?
Appa mundi requires an exchange server, which I dont have.