Explored a bit more on PhoneGap.
Based on my initial basic understanding, seem like the only way currently to incorporate additional mobile app feature not yet available in Tersus, is to meddle/create html and js files in www folder of Android/Iphone packages generated by Tersus. The modification of html/js files would be incorporating apis from PhoneGap platform.
Thats what i understand...hope you can share any insights on this or correct my understanding if its incorrect.
For best results, use the Firefox browser..