I've always hated how, when iCal is closed, the dock icon never seems to show the actual date. iConiCal makes this possible and also lets you customize the icon, choosing from six different styles, some with the date included, others without, and with three different colors, red, green or blue. You can set the customized icon to appear even when iCal is closed or just when it is open. It's a shame that iConiCal doesn't let you further customize by letting you choose any color for example. This small utility is not absolutely necessary, but if like me you want the proper date to appear in the iCal dock icon even when the app is closed, iConiCal is a helpful addition.