"Nokia’s fall has been most spectacular in Asia, a region that its phones once dominated. As recently as 2010, the company had a 64 percent share of the smartphone market in China, according to Canalys, a research firm. By the first half of this year, that had plunged to 1 percent"
The potential for large companies to disappear is much greater than is ever envisaged. Remember that Nikia and Microsoft were one the Apple and Google of the day. QZ has a overview of some of the things that Microsoft is said to have done as a word of warning for Google.