The iPhone being a flat glass screen and nothing else really was a big change. It lets you have video and web browsing, and what actually lets apps be useful.

The iPhone being a flat glass screen and nothing else really was a big change. It lets you have video and web browsing, and what actually lets apps be useful. Before the iPhone, the UX was basically fixed and couldn't be iterated on, and the screen space was ~240p or 144 tops