Nice! Symbian users get to update to a newer Symbian! Oh wait... it's still just Symbian. They better hope Symbian^4 is nothing like Symbian^3.
You can buy a Nokia smartphone confident that any improvements introduced later to the Symbian platform, such as the user interface, can be made available to download on your device as well. No need to wait for Symbian^4 - the improvements we were planning for Symbian^4 will be introduced as and when they become available. In fact, we will no longer be talking about Symbian^3 or Symbian^4 at all – it will be one constantly evolving and constantly improving platform.