Quote:
Supports new 5-way navigators on T3/T5/Treo 6x0, supports portrait and landscape mode on Palms with Dynamic Input Areas (T3/T5/Zodiac)


DIA is where it has a rectangular screen instead of the square one in older Palms. The bit at the bottom where you used to have the input area is now just part of the normal touchscreen. You can show and hide the input area to get extra screen estate. The Zire 72 doesn't have this feature.