I'm addicted to Toodledo iGoogle Gadget which looks really good to me. The only annoying feature is when adding/editing a task: the 'writing box' is very short and especially when doing an edit it's too few to show all the written words so I have to scroll to the right to reach the end (but always a very small part is shown). I think it may be increased a lot (even x3) or better linked to the width of the gadget itself.
When a date is set only day-month are shown (ex. Aug 08) not the day of the week (ex. Mon 08 Aug or the like). It would be very useful IMHO, at the moment I use to register any task with an initial (Mon) to have it always shown.