This idea came from the fact Maemo 5 devices are not able to search within the Email application.
Maemo 5 devices seems to lack a system wide search function.
The function will search in Messaging, Contacts, Email, Musc, Calendar and Bookmarks for a specific keyword.
This feature has been implemented for previous Symbian devices such as the N97.
It should work in both portrait and landscape mode.
Feature screenshot attached.
Main menu screen - http://drive.123-reg.co.uk/F/9986253-281475031802435
Search result screen - http://drive.123-reg.co.uk/F/9986253-281475031802499