GooTodo
(apply for an early-adopter account.)
There are four key components in Gootodo:
Each todo is associated with a particular day.
Each todo has a ranking within its day.
Each todo has both a summary and a detail.
Any e-mail program can create new todos – for today or a day in the future.
UPDATE 4/8/2006:
GooTodo has been released, a free trial is available.
☍ 16.12.2005