You have to hand it to Samsung. After the relative failure of the Galaxy s6, especially against the hugely impressive sales figures of the iPhone 6, many wondered if Samsung's mobile glory days were drawing to a close. Some even speculated that Samsung's Galaxy s5 misstep meant the beginning of the end of the Android platform vs iOS. But, based on the frenzy of news stories in tech media circles, the hope is building amongst Android supporters that Samsung May be able to pull the rabbit out of the proverbial hat when they take to the stage at this year's Mobile World Congress on Sunday to introduce what some are dubbing "the most powerful phone on the planet".