Re: Is tablet sales hurting Ubuntu?
Ubuntu doesn't sell their services to end desktop / laptop users. Large enterprises pay them for support on their implementations, but we don't, so they aren't really hurt if people move away from Ubuntu.
That being said, Ubuntu (and other Linux distribution) users, are more likely than not to be the type of power users who would chafe at the limitations of your typical tablet. They might buy a tablet, but they would never replace their main computer with one. This might be more of a concern for Windows and OSX, but I doubt it for desktop linux.
Furthermore, with 14.04, Ubuntu will officially run on ARM tablets (at least some of them) so this will reduce the migration further.
I - for one - look forward to giving Ubuntu a test drive on my 2013 Nexus 7 tablet once dual booting on the Nexus 7 is stable.
Desktop: Intel Core i7-3930K@4.8Ghz, Asus P9X79 WS, 64GB DDR3-1866, 400GB Intel 750 SSD, Sound Blaster X-Fi Titanium HD, Nvidia Titan X (Pascal)
Laptop: HP 9470m, Core i5-3427u, 8GB
Proxmox (NAS, Mythbuntu, etc.): Dual Xeon L5640, 192GB RAM, 48TB