Preferences folder/files on mobile

[Slava Paperno]

Does the special folder "preferences" point to some location on mobile
devices?

If not, where is one supposed to place a preferences file for an application
on a mobile?

Is the Windows tradition of naming the preferences file with the "ini"
extension upheld on mobiles?

A related question: does special folder "home" have any meaning on a mobile?
The concept of the "current user" does not exist on a mobile device, does
it?

Slava