New technology sets the trend in the market. For example, smartphones are trending all over the world. Subsequently, most people access their mail or browse websites through smartphones or tablets; this shows that the you should invest in making your marketing efforts compatible with these devices, allowing you to reach the maximum amount of customers.
Copyrights are a method of protecting the rights of the creator of certain types of works. In most countries, software you write is automatically copyrighted. A license is the authors way of allowing use of their creation (software in this case), by others, in ways that are acceptable to them. It is up to the author to include a license which declares in what ways the software may be used. For a proper discussion of copyright see

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