I had features:
http://tizen.org/feature/screen.size.normal.480.800
http://tizen.org/feature/screen.size.normal.720.1280
in my App.
However, now it's suspended in Tizen store, as 0 device is supported, and I cannot upload anymore, due to this error.
I checked, and there is one phone currently which is available for Tizen (Samsung Z). However, I think that has "large" screen (4.8")
So for me, "screen.size.large.720.1280" would be required.
I workarounded it, by removing all features, and adding: "http://tizen.org/feature/screen.size.all" only.
Now I could upload, but later if could be a problem, as my app only supports 720x1280 and 480x800, however I cannot specify it for large screens. Currently my App supports all screens by manifest, which is not true, but I could not do anything else.
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So I think, such features would be required like:
http://tizen.org/feature/screen.size.small.480.800
http://tizen.org/feature/screen.size.normal.480.800 <-- already exists
http://tizen.org/feature/screen.size.large.480.800
....
http://tizen.org/feature/screen.480.800 <-- no size required, only resolution
http://tizen.org/feature/screen.720.1280
....