The Flora license is a permissive open source license that is comparable to the Apache 2.0 license.
The material difference between those licenses is in the patent license they contain, because the patent license in the Flora license appears to be restricted to software running on Tizen products.
The Flora licence, like the Apache license, has a few conditions:
- You must include a copy of the license, with an appropriate indication which parts of the software fall under that license
- Modified source files must have a clear indication that you changed them. This is usually done by adding your own copyright line to the existing ones.
- You must retain, in the source code, all copyright, patent, trademark, and attribution notices, except those notices that refer to deleted code.
- If there is a "NOTICE" text file, then you must include a readable copy of the attribution notices contained within such NOTICE file, except those notices that refer to deleted code, in at least one of the following places:
- within a NOTICE text file;
- within the source code or documentation, if you distribute that together with any binaries; or,
- within a display generated by the software, if and wherever such third-party notices normally appear.
The license explicitly allows the code you write to have a different license.
My interpretation is that the sample projects should not be reused or adapted without adhering to the Flora license. Is this a correct interpretation?
Yes, in so far that that applies to any third-party code. But adhering to the Flora license is not all that difficult or onerous and it does not prevent you from using a completely different license (even a closed source one) for the product you build from one of those sample projects.
The template projects are more troubling for me. Most likely, those template projects are also subject to copyright law and the fact that they don't carry a license means that you have no rights at all, especially not to build upon them.
That effectively means that you cannot legally start with a template project. If you plan to do some serious work based of a template project, I recommend you get into contact with Tizen to clarify the intended copyright license of a template project, because they are giving a mixed message by providing those templates without a copyright license.