It's not suprise at all. They know only about their own projects/teams etc.

Well. It's obvious that they have something Linux related in pipeline. For example, look at tweets by luovanto:
"After hacking in Ulm, research & dreaming in Beijing, general futures & good times in Tokyo & Hong Kong, it's good to go HEL"

..Well, ULM & Beijng are sites where INTERNAL OS development is being done. It can be meltemi or successor for meego-fremantle or whatever. Definetly something is being cooked!