Up coming in 2011 Nokia Mobile 4G

Nokia will most likely reinforce its current software strategy - focusing increasingly on a new MeeGo platform for high-end models, using its old Symbian workhorse for cheaper smartphones, and offering developers simultaneous access to both with its Qt toolset.

Having its own operating system gives Nokia full control over its devices rather than being beholden to a third party such as Google or Microsoft.

Apple and Blackberry maker RIM have used their own platforms to great effect, while the market is flooded with very similar smartphones running Google's Android.