I completed the challenge and also tested it using my iPhone and I am able to see the action and the layout per the challenge.
However, when I "check the challenge", it says incomplete because "Challenge not yet complete... here's what's wrong: 
The 'Update Account Information' publisher action was not added to the account layout".

There appears to be some issues with the checking process - someone please validate.

 

I completed the challenge and also tested it using my iPhone and I am able to see the action and the layout per the challenge.
However, when I "check the challenge", it says incomplete because "Challenge not yet complete... here's what's wrong: 
The 'Update Account Information' publisher action was not added to the account layout".

There appears to be some issues with the checking process - someone please validate.