Many many years ago I wrote a few apps for PalmOS devices and the biggest problems were small incompatibilities between different PalmOS versions and small quir

Many many years ago I wrote a few apps for PalmOS devices and the biggest problems were small incompatibilities between different PalmOS versions and small quirks of each device. The fact that the iPhone has a very limited selection of handsets, means that the chances that something that works on your device will work everywhere else are much much higher... Plus the PalmOS emulator was never as good as the iPhone emulator.