Porting between Symbian Web Runtime and Nokia Asha Web Apps
S40 Web App is a zip file actually(.wgt),which is similar to the Symbian Widget(.wgz).They have same file construction and different executive mechanism.And the developers can port S60 Widget to S40 Web App conveniently after some little alterations.
1.HTML Item size
The screen size of S40 device is different from Symbian devices,so the application must chang the width and height of the item in .html or .css file such as text image audio video etc,which will get the best display for UI.
2.Media file size
The resource of S40 device is lower then Symbian devices commonly,in order to run the application faster the developers had better use small media file,which will cost lower system resources.