"wino-board" campaign on kickstarter ? (SAMD21 + Wifi)

I just found this campaign on kickstarter and found it very interesting:
basically it's a Atmel SAMD21 (cortex M0+) combined with a ESP8266EX WiFi-module,
realized on a very small form-factor (1,05inch x 0,73inch) [26,5 x 18,5 mm]
https://www.kickstarter.com/projects/krom/wino-board-the-tiny-10-arduino-with-wifi

it's somehow Arduino Zero compatible,
though it uses a smaller processor of the same family SAMD21E17 (128kB Flash / 16kB RAM / 48 MHz)
(it's meant to be programmed with the arduino ide 1.6.5+)
http://www.wino-board.com/index.php/en/wino-board/technical

I think the advantages are obvious:

  • really very small
  • it's cheap
  • Arduino software compatible
  • Arduino hardware compatible (with additional programming board)
  • integrated Wifi & antenna

some disadvantages are:

  • no integrated USB port (need a small add-on board for that)
  • no 0.1" [2.54mm] breadboard-friendly header (it's 2.0mm instead)

what do you think of it ?

(I'm not related/associated in any way with the campaign owner...)

That looks really cool, I wonder how it'll compare to a Microduino.
Because they're essentially the same thing aren't they?

does microduino have cortex M0 and integrated WiFi as well ?