Yes the mobile pages do work on my Nexus 5.
When I run through the app wizard the Test Connection works fine.
I then register my device with Google Cloud Messaging and that say successful.
I then create a new object, this works fine.... But didn't before so at some point something must have restarted and now it working

Send test notifications, says successful but nothing ever arrives?
Being a total OSA newbie.... What would be the easiest way to make a PIR sensor in the house send a notification to the phone when motion is detected?