To Do is a lightweight and fast widget to manage tasks. Thanks to Mac OS X Leopard it integrates with iCal and Mail. The big advantage: to manage your tasks you don't have to leave these applications open
What's new in To Do
Due Dates, Due Dates and Due Dates! Finally, the most requested feature made it. It even respects your date format preference (including Arabic, Hindi, Japanese, everything!).
Notes and URL can be edited, just hit ⌘I to open the Info HUD.