Hi group

I'm looking for comparisons between DITA and S1000D which provide answers to the following questions:

* What are compelling reasons for using S1000D instead of DITA if you're not in the aeroSpace or defence industry?
* What editors and CMSs currently support S1000D?
* Rumour has it that S1000D is more complex than DITA, but how much more complex exactly?
* Are there any DITA2S1000D transformations available somewhere?

Any testimonials from organizations who have switched from DITA to S1000D (or vice versa) are welcome as well.

Thanks.

--
Yves Barbion
www.scripto.nu