Just received an email form DJI that Spark accessories are now available:
Dear creator,
Thank you for ordering the Spark. We are delighted to inform you that the following four accessories are now available at the DJI Online Store:
Spark - Remote Controller
http://store.dji.com/product/spark-remote-controller
Spark - Battery Charging Hub
http://store.dji.com/product/spark-battery-charging-hub
Spark - Quick-release Folding Propellers
http://store.dji.com/product/spark-quick-release-folding-propellers
Spark - Propeller Guard
http://store.dji.com/product/spark-propeller-guard
Dear creator,
Thank you for ordering the Spark. We are delighted to inform you that the following four accessories are now available at the DJI Online Store:
Spark - Remote Controller
http://store.dji.com/product/spark-remote-controller
Spark - Battery Charging Hub
http://store.dji.com/product/spark-battery-charging-hub
Spark - Quick-release Folding Propellers
http://store.dji.com/product/spark-quick-release-folding-propellers
Spark - Propeller Guard
http://store.dji.com/product/spark-propeller-guard