Differing windowing api's mostly.  Same reason gtk apps work oddly under kde(qt), vise-versa, and java gui features don't work right on anything ever.

Anything hardware accelerated graphic-wise use totally different driver sets and gpu stuff too, compositing functions for enhanced gui features (make pretty transparencies), things like that differ extensively with their kernels.  Same as directx based games never work right under wine, you can only emulate some things so much by reverse engineering and fuzzing.

They're just building yet another walled garden like everyone, pick your religion.  Sort of why webapps are the last frontier, it shouldn't matter at that point what garden you reside in (but still does).

-mb


On 07/11/2015 01:32 PM, Michael Havens wrote: