Hi,
I downloaded RTOS for Kinetis SDK 1.0.0 (Beta) and I have IAR 7.20.2 installed. I disabled MISRA checks as my IAR license does not support it and was then able to build the library and the Hello binary. I cannot download it however. IAR seems to think that I want to use the I-jet problem as it complains that it cannot find it even though CMSIS-DAP is selected in the debug options (attached image). The MBED filesystem mounts and I was able to copy a Hello problem and see the output on a serial terminal.
Mon Aug 18, 2014 15:37:34: Loaded macro file: C:\Program Files (x86)\IAR Systems\Embedded Workbench 7.0_2\arm\config\debugger\Freescale\
Kxx.dmac
Mon Aug 18, 2014 15:37:34: Loaded macro file: C:\Program Files (x86)\IAR Systems\Embedded Workbench 7.0_2\arm\config\flashloader\Freescale\
FlashK60Xxxx128K.mac
Mon Aug 18, 2014 15:37:34: Loading the I-jet/JTAGjet driver
Mon Aug 18, 2014 15:37:39: Fatal error: Probe not found Session aborted!
Mon Aug 18, 2014 15:37:39: Failed to load flash loader: C:\Program Files (x86)\IAR Systems\Embedded Workbench 7.0_2\arm\config\flashloader\
Freescale\FlashK64Fxxx128K.flash
Mon Aug 18, 2014 15:37:42: Loading the I-jet/JTAGjet driver