Bethesda has announced that they will be bringing Fallout Shelter to Android devices on August 13, 2015. The company announced that it was working on an Android version of the game just last month.
From Bethesda Game Studios:
— BethesdaGameStudios (@BethesdaStudios) July 24, 2015
Fallout Shelter places you in the role of a Vault Overseer in the world of Fallout. You can build your Vault how you want, and assign your Dwellers various duties inside the community. You’ll also need to protect them from hazards coming from both inside and outside the Vault.
While you’re waiting, head over to iMore for the best strategies for keeping the wasteland out of your vault, so you’re ready to go on August 13.