Google's Ingress Opens to all Android Users December 14
The Next Web
ingress Ingress, Googles augmented reality game, will be open to all Android users from Google launched Ingress, its alternate reality game for Android devices, via an invite-only beta in November 2012 and now — nearly one year later — it's been ...
Google's Augmented Reality Game Ingress Is Coming To All Android Owners ...
Ingress leaves beta, begins a whole new chapter
Niantic Labs drops Ingress invitation requirement