In the case where multiple applications are loaded that have the property to always be on top which applications would have priority?

If two or more applications are written by different authors...

We have an application that is being ported from a Window Mobile application to Symbian.

The application writes directly to the screen and creates a semi-transparent effect so that the user can...

Are there any developers out there that have had experience developing
third party virtual keyboard applications for the series 60 phone. We are
scoping out a new application and are wondering how...