Linux version of Nokia QT, as I did already write, doesn't directly support compilation of mobile applications. This is some way solved by the “remote compiler”; an experimental service, provided by Nokia forum, that compiles sources sent to it returning back the mobile device installation file. The whole process might look complex at first, but it's well documented both in Nokia QT help files and in forum's pages.
Remote compiler configuration
In order to access to the remote compiler service you must be registered to Nokia QT forum; once registered you can configure your user-name an password in remote compiler configuration form and start using then service.