by Glenn CHAPMAN SAN FRANCISCO, United States (AFP) — Samsung on Tuesday unveiled its second folding smartphone, a “Z Flip” handset with a lofty price tag aimed at “trendsetters.” The smartphone flips open, like a case, opening into a 6.7-inch screen, and fits in a pocket when folded. The ultrathin glass used for the screen can be folded and unfolded more than 200,000 times and resists scratches, according to Samsung. The Galaxy Z Flip will […]