Arduino 101 release

The new Arduino/Genuino 101 is now available for purchase.

The 101 support is available through Boards Manager in the IDE thanks to the 1.6.7 release.

Any feedback is very much appreciated.

What is the proper way to identify the board architecture (for use in developing libraries, etc)? For example for AVR its ARDUINO_ARCH_AVR, for SAM it’s ARDUINO_ARCH_SAM. It looks like it may be __ARDUINO_ARC__ but I just want to be sure before I start using it. Also the change in naming convention is weird if that is the case.

It is ARDUINO_ARCH_ARC32.

I ordered for one piece on 23rd December. Is there any country restrictions (other than name as Genuino) to ship it?
Also will there be any difference in sketches for Galileo and Genuino 101?