PalmOS did a lot of things right. One thing I'd like to see make its way to mobiles again (or iOS at least), is better handling of "app data". PalmOS made it a

PalmOS did a lot of things right. One thing I'd like to see make its way to mobiles again (or iOS at least), is better handling of "app data". PalmOS made it a point to separate the executable and it's data, in the form of a database file that could be easily backed up.