Samsung has launched an ad campaign for their smart watch, the Galaxy Gear. And from the ad, you might think this watch is about to make your dreams come true. [youtube=http://www.youtube.com/watch?v=B3qeJKax2CU&w=420&h=315] Yes, fictional character have used this technology for decades. A watch that can display information beyond time, act as a communication device, and, if …