Nokia announced in its blog, "The all new Nokia Belle (previously Symbian Belle) user interface will soon be available for download to some existing smartphones and begin shipping with a selection of smartphones that are already on the market."
What was formerly Symbian Belle was launched earlier this year with the Nokia 701, Nokia 700 and Nokia 603 smartphones.
Starting in February 2012, Nokia will release the Nokia Belle software update to existing customers, who will be able to download it straight to their phones.
Nokia Belle brings more home screens, expanding the current three home screens on Nokia Anna to six.
Nokia has also improved the home screen widgets and made them more functional than before.