ttp://creators.xna.com/en-us/home_feature_detail
> All premium members can participate in the creation, submission, and peer
> review roles, but consumption ? or play ? is limited to US only in this Beta.
> We’ll be adding support for other regions in the coming months.

ぐは、BETA CODEが通らないのはこれのせいか
日本じゃダメなのか