The Ambiq Micro Apollo1 (APOLLO512-KBR) breakout boards are now available in the FEEU webshop:
http://shop.feeu.com/Shops/es966226/Products/SK-AMAP1-BREAKOUT-V11
more information and schematic can be found here: Factsheet_SK-AMAP1-BREAKOUT-v12
Apollo2 breakout boards will be expected 1-2 weeks later.