Its time to think the day after die, we're not live forever, don't you think your business only. There are many Islamic Application for Symbian based phone.
There are 36 pcs Symbian S60 3rd Generation Islamic Application, some application in Indonesian languages & English such as Quran Reader, Zakat Calculator, Index Quran, Indonesian-Arabic Dictionary, Prayer Times, Bukhari Hadith Reader, Mobile Quran, Shahih Al Bukhari, Shahih Muslim. And much more..
These Application Insya Allah compatible with many phone with Symbian S60 V.3 based, such as Nokia N70, N73, 9300, 6680, 9500, etc..