alt Hacker NewsThat is quite some board! Arduino has certainly progressed, I'm still playing around with R3 boards and ATMega chips. Other than the form factor, this looks like not only a completely different class of product, but a completely different hobby or business.
ATmega micros are still incredibly useful and the Arduino ecosystem (especially the open source libraries, thanks Rob Tillaart!) makes it so easy to whip up a firmware. I really hope no matter what happens Arduino doesn't go off the rails.