Linux and Arm CPU's

After the announcement of Nvidia spark laptops, and the Qualcomm's second generation of CPU's for Laptops, do you think that Arm will be the next architecture for Linux or will it be the 'killer' of Linux desktop, what I know that so far Qualcomm laptops aren't good to be used with Linux until now, and the Nvidia spark chips have Linux installed by default when they were on the spark boxes, so, what do you think the experience with these laptops will be like?

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