iPhone Sales Are Down. Are We Flipping for 'Dumb' Phones Instead?
ASTRO Slide 5G Transformer is a 5G phone with keypad - Android Authority
Samsung is working on an extendable 'slider smartphone' with waterfall screen
Google, Apple, Samsung, BlackBerry: Cellphones that no longer exist
Nokia Mobile - Flip phones, cameras, touch screens and other innovations took the phone game up a notch. What do you think is the next innovation that could revolutionize the industry? | Facebook
How Samsung's luxury flip phones paved the way for the Galaxy F