(adsbygoogle = window.adsbygoogle || []).push({}); Sorry if this is the wrong section, I downloaded the google+ app for my droid.. and it gave me the option to join, it worked for my friends too.. i invited them... i'm not sure if its like a glitch in the app or something but it worked.

I'll check it out in a min and post my results.

Late reply but no it doesn't work. You can't sign up via the app on Android.