When word came out that Motorola was rereleasing its hit Razr smartphone, I was excited. Now that it has been delayed until the end of the year, the sizzle seems to be lessening a bit. Razr was hot more than a decade ago, but then it quickly faded away when the iPhone and Android stole the show. Motorola wants to give the Razr another shot at stardom, so, the big questions is this: Will it be a long-term hit, or will it shine like a shooting star and then vanish? The Razr’s return sounds like a romantic comeback story.