Was glad to finally get these, but seems I can't get them to work 
Tried Arduino IDE 1.6.4, and 1.6.5r2
Won't compile without errors...
Discovered that RangeTest sample is missing...
include "extEEPROM.h"
include "Wire.h"
Discovered that apparently I need to have "32bit ARM Cortex-M3" boards installed too (getting started guide makes no ref. to this)
Getting a little further now...
Compiling gets stuck on syscalls_sam3.c.o not found,
researched this problem, apparently latest version is buggy, back to v1.6.4
still won't compile...
changed platform.txt to remove referance to /core/syscalls_sam3.c.o and just be /syscalls_sam3.c.o
Getting a little further, now I get a slew of errors like...
c:/users/user/appdata/roaming/arduino15/packages/arduino/tools/arm-none-eabi-gcc/4.8.3-2014q1/bin/../lib/gcc/arm-none-eabi/4.8.3/../../../../arm-none-eabi/bin/ld.exe: {archive_file_path}(new.cpp.o): Relocations in generic ELF (EM: 83)
{archive_file_path}: could not read symbols: File in wrong format
collect2.exe: error: ld returned 1 exit status
Error compiling.
Would really appreciate some more testing/documentation.
Spent allot of time on this and getting nowhere
