The 4 most common mistakes when launching a new product

Who hasn't ever considered using Apple as an example of how to launch a product onto the market, but so much has been written about the subject that I've preferred to deal with it from the opposite perspective: what mistakes to avoid when launching a product. And what better example to illustrate these errors than one of my favorite products of all times, a product ahead of its time, a novel product, quality, technological but that failed miserably: the Segway PT.