If you've recently downloaded Google's new Adsense app, and the latest version of the YouTube app, you may have noticed that you didn't have to sign into both of them—just one or the other. That's because they feature new unified account sign-ins.
Several users have noticed that Google has switched on shared account logins for the latest version of its YouTube app, as well as Adsense. This means that logging into one will automatically log you into the other without the need to enter account info...