hmmmm that nexus I purchased hasn't received the update yet and the other nexus hasn't either but my secondary nexus I use 32 gig 2012 has received it.
It's a little odd how google can't push out the OTA updates to everyone at the same time (no excuse for it imo) what I'm concerned about and if it goes through I'll drop android altogether. this year my 32 gig nexus 2012 model will be over 18 months old if google do decide to not push updates for it I'll switch to either Microsoft or Apple.
I read an article (and I can believe this) that mobile devices and tablets are fast enough to run the latest os of android so they are capable of running these latest OS of android. I think google are being d--ks about it and forcing users to upgrade tablets/mobile devices when there's no need to. They have a chance to cut down the fragmentation between android OS on mobiles but they do something stupid by not updating devices older than 18 months old.