Nokia is definitely abandoning the Symbian mark as they have now called Nokia Belle to the new operating system for phones like the Nokia 701, N8, C7 and all other Symbian^3 powered phones.
On the official Nokia Conversations site, Nokia had made it clear by saying “The all new Nokia Belle (previously Symbian Belle) user interface” that they pretend, once for all, abandon the Symbian trademark. What this means to Symbian future is yet to be understood.
On the good part, Nokia has officially stated that, from now, the Nokia N8, Nokia C7 and Nokia C6-01 have started shipping with Nokia Belle pre-installed.
Not so good is that for the owners of Nokia N8, Nokia E7, Nokia E6, Nokia X7, Nokia C6-01, Nokia C7 or Nokia Oro, the Nokia Belle update will only be starting on February 2012. At least, we now have an official date for the update.