As seen in Sw_update... These versions match those available in Belle FP2 devices. The Calendar update is being pushed to all Belle devices that haven't already got this version as part of a firmware update, while the Nokia Social update seems to be being pushed for Belle Refresh(ed) phones only.
When first setting up a social account, you're asked if you want to grab contact images - always worth a go (mine are woefully under-populated still); and the Facebook module in action.
Nokia Social's Facebook main menu; drilling down into a friend's Facebook photo gallery
The Twitter view; and the shared menu across the Nokia Social application...
The free (licensed) ColorizIt utility (for the N8) - reviewed by me here in the past....
You can check for these updates by going into Sw_update on your device. Note that the Nokia Social and Calendar updates require a restart of the phone. Note that the Social contact thumbnail integration requires a certain amount of indexing and downloading, so don't expect full speed from Social for a few minutes after the restart.
Note also that, as usual, there may be some restrictions in availability depending on region and product code, though I'd have thought these applications were fairly generic. It's great to see more and more of the Belle FP2 functions and featured being shared for the older devices and OS version. And it's truly impressive, amidst dwindling Symbian-focussed resources, to see how Nokia keeps supporting the older Symbian^3 generation devices with firmware and application updates a full two years after release.
And yes, there's still some confusion over some older device product codes getting Belle Refresh and some getting the 'Homescreen widgets' update. Don't blame me, go ask Nokia!