I am going to start to develop a new symbian app for full range of Symbian devices starting from S60 3rd Edition devices.
Here are the platform requirements for the app:
1. It should run on all the versions from S60 3rd ed onwards (fp1, fp2, 5th ed, anna, belle).
2. All the UI is going to be custom. No default ui controls.
3. One sis file for all devices. No different executables for different devices.
Could experts suggest how to go about this kind of application?
Which minimum SDK shall i develop upon to achieve all this? And which carbide c++ would be best to work with?