Read about differences between To Do list priorities in iCal and Palm OS in this informative document.
iCal and Palm OS have different priority quantities. When synching data between iCal and a Palm, the priorities will be somewhat different, but they will still reflect a relative order.
Palm devices also have no method for specifying a "no priority" condition. When a "no priority" iCal task is synced, it will assume the lowest priority on a Palm.
Important: Information about products not manufactured by Apple is provided for information purposes only and does not constitute Apple's recommendation or endorsement. Please contact the vendor for additional information.