We're rolling out Android through an early-access tester program. Two quick steps and it installs from Google Play like any normal app — with automatic updates.
1
Join the tester group
Sign in with the Google account you use on your Android phone, then tap Join group. This enrolls you as an approved tester.
Order matters: join the group first, then open the Play link. If you see “item not found,” you're either not signed into the account that joined the group, or the group was just set up — give it up to a couple of hours and try again. Once you're in, updates arrive automatically.