> All the cell phone companies had their own proprietary OS. Symbian was used by dozens of manufacturers and came in different flavors. S60 for standard smartp

> All the cell phone companies had their own proprietary OS. Symbian was used by dozens of manufacturers and came in different flavors. S60 for standard smartphones, S80/90 for communicators, UIQ for touchscreens. Windows Mobile was also widely used and had an edition for phones using a touchscreen and one without them. Hundreds of millions were sold before the iPhone even came out.