In what could be seen as a sign of the times, the Sony Ericsson Software shop will remove all applications which have not went through the Symbian Signed process of verification. While this has been noted (quietly) to be happening for some months, the fact that a Handset Manufactuer has finally taken this action will get a lot of Operators looking seriously at the idea of locking down phones. Symbian Signing an appliction currently costs in the region of $250 and upwards per installation file, plus a one time registration cost of $350 for the author. Thanks to NewLC for the link.