Yes, some may argue that Android is molded from Linux Kernel, but the ability to be able to run bash scripts purely in a Linux environment that is not adulterated and polluted with non-Linux features is truly a tech Shangri-La for hardcore Linux lovers.
This helplessness in getting our wish fulfilled for a Linux tablet has many of us desperately digging for a solution that could satiate our thirst for Linux.
A while back we decided to move onto Ubuntu for our backend server deployment. The main reasons for this was a predictable release cycle and long term support by upstream (this decision was made before the announcement that the Debian project commits to long term support as well.) With the release of the Ubuntu 14.04 LTS we are now in the process of migrating our ~5000 servers to that distribution.
Ubuntu 14.04 Long Term Support/LTS (Trusty Tahr) proves that it doesn’t matter if you’re Oracle, Microsoft, or Canonical: Bringing a fleet of products into new release revision synch is tough. Canonical is trying to cover the bases of cloud, server, desktop, smartphone/tablet, plus management and support and services add-ons. In this release, Cloud and Server get much attention; Desktop not so much. And the Ubuntu smartphone/tablet bits aren’t reviewed here as there are no “production” versions in the wild.
As it's been some months since last running any Linux vs. Mac OS X performance benchmarks, up today are benchmarks of the latest OS X 10.9.4 release on a Haswell-based Apple MacBook Air compared to running Ubuntu 14.04 LTS on the same hardware with also upgrading against the Linux 3.16 development kernel.