It is an amazing corporate lesson for all to see how a Giant like Nokia crumbled in such a short span. It also revealed how much profit the Big companies in smartphone market were making before the chinese invasion. Although Apple may survive for some time owing to the hype and niche market, its a matter of time before some chinese brand(s) will be a dominant player(s) in the market.
As for Microsoft Windows 8 has been a failure. I still have many issues with my win 8 laptop. I hope they will be able to rectify the mistake with Windows 10.