I dunno; minus the lack of true multitasking (which the iPhone, too; originally lacked), OG PalmOS got really close, especially for the time. By the time we go

I dunno; minus the lack of true multitasking (which the iPhone, too; originally lacked), OG PalmOS got really close, especially for the time. By the time we got the HandSpring with it's removable/exchangeable extensions like GPS + MP3's, or the Treo, with it's built-in phone - PalmOS always felt solid and was so amazing on battery life it blew the mind.