Here are some of the least subtle references:
I had to look up how to spell nougat. But I do know how to spell Nutella. https://t.co/XM3i9idhea-- Hiroshi Lockheimer (@lockheimer) February 22, 2016
There's one specific dish on this menu that I'm keenly interested in. pic.twitter.com/3y5oj9c40x-- Hiroshi Lockheimer (@lockheimer) June 6, 2016
Just testing some stuff out... pic.twitter.com/6KPTEgXl9K-- Hiroshi Lockheimer (@lockheimer) June 15, 2016
The naming of the OS will likely be revealed soon as Google prepares final betas of Android N for release in the coming months.