I like it! Any code one might look at? Do you use it alongside a normal calendar?
Yes I use CrushEntropy for planning my day and tracking how I spend time through the day (a column of plans next to a column of actual gives you a good sense of how things are going), and Google Calendar for all meetings.
I plan to add some selective syncing with Google Calendar. I haven't had a pressing need for it though. Do you need that?