One of the most exciting changes in Android O is the new Autofill API that would allow password manager apps to register as system-wide providers of autofill services. In layman terms, this means that apps like LastPass, 1Password, Enpass, Dashlane, and others, won't have to use accessibility services or screen overlays anymore as a workaround to fill up your usernames and passwords. Instead, they will have one API that grants them native access to enter your information without too much hassle.
AgileBits has put up a demo of a test version of 1Password, its password manager, which has been updated to benefit from O's Autofill API. Read More
Update: Excuse me, this isn't actually AgileBit's first swing at the whole 1Password for Android thing. The team previously released a version that it allowed to grow so out of date that it chose to develop and release a new one built from the ground up. The Play Store link for the previous release has been taken down.
1Password keeps all of your login credentials encrypted and safely tucked away under the protection of a single master key, and now the cross-platform service has extended out from Windows, Mac, and iOS to make itself available to Android users. Like LastPass, 1Password wants you to stop using the same password across multiple sites. Read More