Very nice piece of software, but requires you to fill in all fields when setting up a new to do, and overall seems to force you to do things a certain way.
Some recommendations: In creating links, drag and drop is nice, but for some links selecting through a dialogue box would be better. Within categories, I may like to set up folders. Also, you can only view one category at a time, but I may like to see all at once. Finally, a drop down menubar item would be a nice adition.