No. Multiplatform will always remain an important possibility, but only a possibility. No effort, for the time being, will be spent on removing platform dependancies. For the time being, if I look at my long-term roadmap, I have a component that mandates the use of D3DX. I have spent weeks in searching for a multiplatform replacement with no success.
will this influence your decisions regarding targeting Linux as a platform for your ongoing / future projects? If so, why or why not?
It seems extremely likely Win will remain the center of operations for quite a while. Because of my past experiences with Linux, it will be left as a last target. Both Apple and Android seems much better candidates to me for the time being. Sorry dudes, that's my sincere decision after having used Linux for close to 10 years.
Honestly, I'd rather stab myself in the eyes with a rusty spoon than use SDL for anything... ever.