Samsung has been proudly showing off progress on Tizen, the open-source Android alternative project it’s been shepherding since 2011. Its latest time in the spotlight shows that Tizen can indeed do all the things you’d expect a mobile OS to be able to do — and that includes shopping for and playing popular casual games.Ecosystems continue to be a huge factor in the success of a mobile OS. iOS and Android still lead the way, and Windows Phone has gained a lot of ground. BlackBerry continues to struggle. Firefox OS is taking a different approach, of course, by putting the entirety of the mobile web on display as “apps.” Does Tizen really stand a chance?Sure it does, as long as the company keeps showing off popular titles like Cut The Rope and Gameloft’s Asphalt7 running on Tizen. Samsung is the top seller of mobile phones in the world, and its Wave 3 devices with the in-house Bada OS enjoyed plenty of success when they launched two years ago. Samsung’s brand clout has grown considerably since then, and it’s not hard to imagine a Galaxy device with Tizen getting a warm reception from the public — provided it can deliver the apps, too.Tizen’s cutting-edge HTML5 support should ensure that it can match Firefox OS in terms of mobile web apps. HTML5 is something that the Tizen Association has been bullish on ever since the evolution from Meego began. The Tizen 2.0 release is also packed with new developer goodies, and it’s clear that Samsung understands the importance enticing top-flight studios to build for Tizen. The company has mentioned adding BlackBerry-style support for running Android apps in the future, but that could remain plan b if Samsung can prove Tizen can stand on its own and attract developers without dangling a compatibility layer.The fact that so many carrier are already involved with Tizen development won’t hurt it’s chances to succeed, either. With NTT DoCoMo’s director of marketing chairing the Association and big names like Orange, Vodafone, Sprint, SK Telecom and KT (Korea Telecom) on board, it’s not hard to imagine a flood of Tizen phones on retail shelves over the next couple of years.It’s already trickled out that Google isn’t too happy about Samsung’s Android dominance. It’s starting to feel a bit like the Galaxy brand carries more weight with the public, after all. And with Samsung showing off how capable Tizen 2.0 really is, you can almost hear the Google execs snapping their pencils in Mountain View.