Hi Steve,
I fully understand, that the names are so similar and is very confusing for beginner to orient in these shortcuts.
For short clarification:
KDS (Kinetis Design Studio) is Integrated Development Environment for Kinetis MCUs. For question about KDS, please contact us here Kinetis Design Studio
KSDK (Kinetis Software Development Kit) is a package of hardware abstraction layer and drivers for each peripheral, USB and connectivity stacks, middleware, real-time operating systems and example applications designed to simplify and accelerate application development on Kinetis MCUs.
contact us here Kinetis Software Development Kit
KSDK contents a lot of examples, which you can modify in KDS (also in IAR, MDK, makefiles support with GCC (ARM GCC), Atollic).
Anyway... thank you for your feedback, I will pass it to Marketing Team.
I hope this helps.
Best Regards,
Iva