According to the latest press, Ryzen preorders for the three R7 SKUs will start today at 1pm EST with shipments on March 2nd. Let's keep this thread open for posts concerning where and when the products are available, and what you preordered! The three partners listed in the press briefing were Amazon, Newegg, and Microcenter. I don't see any pre-orders up yet. Not sure if this also includes motherboards?
Looks like the wait is over!