Nokia revealed that the Nokia 808 PureView runs Nokia Belle OS Feature Pack 1, which brings a number of improvements. Also, they have some good news and some bad news for owners of current Belle devices too, depending on what device you have. The good news is that if you have Nokia 701, 700 or 603, then you'll be getting the feature pack soon. The bad news is that other devices (like the older ones that launched with Symbian^3 or the Nokia 500) are not invited to the party.
Here's some more good news/bad news - the 701 and 700 will both have their CPUs bumped to 1.3GHz by the update, matching the 808 PureView.
GSM Arena, Nokia 701, 700 and 603 to get Belle FP1, same as 808 PureView