Do the currently available native Salesforce1 apps contain all the Spring 14 Release features?

This URL indicates that they are:
http://help.salesforce.com/apex/HTViewSolution?id=000188534

I'm noticing discrepencies between the web site at /one/one.app and the native apps.  After going through the steps to make the canvas app available, and using the “Signed Request (POST)” for the “Access Method” here is what I am seeing:

• For mobile browsers (Safari on iOS or Chrome on Android), it is shown and does POST the signed request to our server
• The Salesforce1 native app on Android does not show the canvas app in the navigation menu
• The Salesforce1 native app on iOS shows the app in the navigation menu, but makes a GET request to our server without the signed request