NSA and CIA will use all its powers to make Tizen fail. Call me paranoid, but they want closed source operating systems, which are made in "homeland", in USA. When eventually all people will have some kind of mobile phone/pda, it is the most easiest and cheapest way to do their job to have controlled closed source OS run in them.

There were lots of people who wanted Meego and Symbian to fail also, and they succeeded.

It is a back up plan for not so high profile things though. We all know CPUs all have backdoors, don't we? :P