The Nokia E6 just got itself an update to Nokia Social, to v1.3.250 (from 1.3.236). It's not clear if this is instead of the big v1.5 update that the other Belle devices got, or whether it's simply a necessary intermediate step. Nevertheless, always worth keeping on top of these things and there do seem to be some small cosmetic and performance improvements.

The Social update is offered when you go into Sw_update on the E6 or if you plug into Nokia Suite and requires a phone restart after installation, pointing to a few hooks into the phone's Contacts subsystem at least. Comments welcome if you notice anything that's actually significantly different!