Ok, so 'cloning' may be a little harsh, but the question posed by Touch Arcade is a valid one. How do you feel about games that draw heavily from others to the point of almost being the same game?
Oceanhorn is the example given.
But it would be nearly impossible for someone familiar with Zelda games to look at Oceanhorn and not immediately think "Zelda." The overall look is extremely similar in terms of the environments and main character. The sailing mechanic is very much like that found in Wind Waker and Phantom Hourglass. Heck, even throwing clay pots around evokes strong Zelda feelings, even though I've seen that used in tons of similar games before. The question is, is it too much?