Wow, awesome. A great way to quickly write down an entrance to iCal. Some stuff could be improved though;
For instance, notification (alarm). If you could set as default that all reminders would set of a notification at a changeable amount of minutes. "Enable iCal's Default 15-minute Alarm" checkbox doesn't really do anything. When I check it, it unchecks itself after starting iCal.
If you type 2 different days it chooses the first instead of the last.
Well, more options would be neat. Like changing the hotkey and so on.