Innovation is a tough enough task all by itself. Today's innovators need to be highly intelligent, motivated and creative to come up with solutions to some of the biggest technological problems. But adding to these difficulties is <A HREF="http://etech.eweek.com/slideshow/index.php?directory=hurdles&kc=EWKNLEDP052008A">a whole host of hurdles</A> that can make it tough for even the best and most innovative technologies to survive.