Arabic is the 5th most spoken language on Earth, and is a right-to-left language. If you don't support most of the languages used around the world, then it's going to be hard to be taken seriously as the new defacto standard for desktop publishing... and at the very least, the page on the AppStore should state very clearly which languages will work with your product, since the general assumption by people is probably that your product works with every language supported by the OS. As it stands now for those of us that live in countries that speak one of your unsupported languages, your product is completely useless, since we can't create anything with text.
