Besides Objective-C
Mobile Resources
Feed Herny developer training : crossplatform and HTML5
Building mobile apps with JavaScript and PHP
Cordova: Making Native Mobile Apps With Your Web Skills
Intro to Mobile Development for Web, IOS & Android Native Apps using PhoneGap & HTML5
Building Cross-platform Mobile Apps with Force.com and PhoneGap
Mobile Application Development
Incident reporting system presentation
Drupal and mobile devices komelin konstanin (eng)
Incident Reporting System