No one says Apple products are going to fail this year, relax. Most people on earth still don't have a smartphone and so Apple and Samsung will keep on making record revenues and profits until either a better competitor appears or the market gets saturated. Neither will happen any time soon but it's obvious that no market can keep on growing that way for too long.
As for the "this is the year of the Linux desktop", this is the most annoying straw man meme ever. I have yet to meet anyone who ever claimed so except for a couple of articles on cnet or so a few years ago. Linux market share on the desktop worldwide is at 1% which is pretty significant when you think that macs, with all Apple billions are at 5% only. MS has won the desktop war. On mobile however, linux seems to be doing pretty good and so is ios, simply because the market is still growing and there is place for more than one winner. Isn't that great? :)