Back in February, we covered Justine Haupt's adventures in making her own "distraction-free" 3G cellphone with a rotary dial and a humble ePaper display. She even open-sourced her design and firmware and shipped out some proprietary parts to people who wanted to make one for themselves. Now, she's drafting plans and booting up manufacturing to sell a 4G version with a few more features in tow.

Read More