The latest word we had on Tizen is that Samsung plans to officially introduce the platform at its Developers Conference next month; this comes after several rumors, including a tweet from Russian blogger Eldar Murtazin, said that the OS was DOA. While relations between Google and Samsung appear to be alright for the moment, there are other reasons for Samsung to want to keep developing Tizen...
Source: http://www.phonearena.com/news/Come-see-the-Samsung-Galaxy-S4-running-on-Tizen_id47252
Source: http://www.phonearena.com/news/Come-see-the-Samsung-Galaxy-S4-running-on-Tizen_id47252