Those clones don't really look like the original. The graphics may look the same or may even have the same copied bitmaps, but it seems that the fakers can't make the transitions between views very nicely. Why? They don't use the proper toolkit or are incapable of doing that with e.g. OpenGL. E.g. in the video, the only transition seen was the transition to main menu. Everything else was like it would be done with just some traditional 2D toolkit (despite there are open source toolkits being developed that could do those things for real, like the clutter toolkit from Opened Hand, maybe for the fakers it doesn't matter). Anyhow, in my opinion, faking something really innovative is lame and it would be better business to do some real products instead of copy-products, however, on the other hand, if the company that produces this kind of fakes would have some innovation, they would not be listed on this particular topic...