With the first Tizen device, the Samsung Z1, shipping and reaching the hands of customers, it might be a good time to take a look at what kind of development options you have if you want to build a Tizen application. While you can code in HTML5, the real deal is, as always, native development.
Native applications can utilize a greater range of device features and can provide better performance than other applications. This is because native applications use a wide range of device APIs and are particularly lightweight. However, creating native applications can initially be complex if you are not familiar with the native API layout, application architecture, and life-cycle. In addition, you must become familiar with the Enlightenment Foundation Libraries (EFL) that are required to make scalable and fast graphics.
You can also delve deeper into Tizen development.
Meanwhile, AndroidCentral has taken a look at the Z1 as well, concluding:
If we’re ever to see Tizen on a high-end phone, with a proper global marketing push behind it, chances are it’ll look drastically different to what we see on the Samsung Z1 today. For now, what Samsung has is a lower-cost, slightly more modern replacement for its older Bada devices, not a potential successor to its vast Android lineup.