They had the text games from 2008-2010. They ended up causing a lot of issues with service and connectivity. So mush usage in such a confined area really put a strain on the system. If they rolled out WiFi and oriented that into the project then yes, maybe SmartPhone oriented games would be back, until that moment comes don't expect it. The app they rolled out last year was great, but the biggest untapped potential of the app was the lack of wait times. At that, that is a huge downfall for the Universal App as well.
EDIT: After downloading the HHN 22 app there is a tab for wait times...
Also, who is staying up till midnight on the 29th!?