Drupal is a great platform that we prefer to use when building websites due to the ease of use and availability of some great open source plug-ins (modules). They allow user accounts, content management of all kinds, and can be really easy to manage and maintain. Wouldn't it be nice if you could turn your website with all of your content and users into a nice mobile app?
There is a Github repository available for the project if you'd like to contribute, otherwise the creators over at EasyStreet3 can help you develop your project for $130/hr.
Still, as it is we've found DrupalGap to be extremely powerful and full of potential. If you've got yourself a Drupal powered website, definitely be sure to check it out.