I had Google maps on my Nokia SymbianOS phone before the iPhone was released. It worked just as well as modern version but was I little clunkier to use without a touchscreen. I'm pretty sure that Palm Treos had it as well. There where also some other options, I kinda remember Garmin selling map packs for Palm devices. Smartphones existed before android and iPhone, even if they weren't as widespread they were catching on with the broader consumer before the iPhone was released. You saw more more people getting blackberries for personal use instead of just business.