Apple has released iCal 1.5.2 which gives you the option of viewing your calendar, event, or To Do information in a drawer or in a separate window, and includes a number of performance and reliability enhancements.
If you use iSync to synchronize your calendars across computers and devices, you need to upgrade each computer to iSync 1.2 (or later) and iCal 1.5.2.
iCal 1.5.2 is available via Software Update, also available on Apple’s website and is 7.7MB. More information about Apple’s iCal and download link here.
