I would also be interested in this. I tried SSuite's Year Planner, but I can't get it to display the events as colourful dots in the annual view (as in their screenshot) for some reason. Maybe it's my system (Win7, 64-bit).
Something like this would be good for implementing the
Jerry Seinfeld productivity method. I'd imagine there could be others who might be interested in something like this. Basically you'd want a simple colour-coded indicator (a dot or a big X) to represent the "chain" of identical daily tasks that have been accomplished. According to this method at least, one would only want to track 3 or 4 big tasks a day (such as "write," "clean," "gym").
For annual calendar I use one of the gadgets in Google Calendar, but sadly all it displays is the dates... I like the simplicity of
Classic Calendar, but it's monthly and there is no colour-coding of accomplished tasks...