The smartphone market is down but not out, with high prices and other factors combining to chill what had previously been a red-hot sector.Fresh surveys show global sales had their worst contraction ever in 2018, and the outlook for 2019 isn't much better.Still, analysts don't see the sun setting any time soon on the smartphone era, seen as a must-have device for many people around the world."They don't have a viable replacement yet," independent Silicon Valley analys