That is a big problem that I see. Instead of looking at how well the iPod Touch or iPhone solves some of its mobile usability issues, people tend to feel like their app or their device shouldn't be like that at all. You don't need to copy ideas, but at least learn from what has been done well in some areas. Unfortunately when people act like this it causes suffering for the end user who doesn't get the benefits of good ideas that are already out there simply because someone couldn't swallow their pride and continues to think that similar devices are their "enemy".