[Oliver_H]

But maybe the biggest problem these cases hint at is that Linux development is being done at such a fast pace that other operating systems just can't keep up. Linux distributions and Linux-centric developers are used to the "release early, release often" mantra, including swapping out key components and breaking APIs each release. The BSD world doesn't work that way, and this makes working together on a modern cross-platform open source desktop increasingly difficult. The innovation of Linux inevitably comes at a price: Linux is the de facto Unix platform now, and hence more and more programs will not be portable to other operating systems.

via lwn