tThe following video is part of our "Motley Fool Conversations" series, in which technology and media editor/analyst Andrew Tonner and consumer-goods editor and analyst Austin Smith discuss topics around the investing world.

Tech giant Apple has seen plenty of products billed as the next "Apple killer," with really none of them living up to the hype. Even's Kindle Fire, the second most successful tablet behind Apple's iPad, lags Apple's prowess in the smart-device category. However, one looming entrant to the smartphone market does represent an authentic challenge to Apple -- Microsoft's Windows 8. The operating system Mr. Softy plans to release later this year represents a massive threat for not only Apple, but Google as well, as it continues to vie for dominance in the tablet and smartphone arenas. Listen in to hear exactly why, as well as what it means for investors.

The emergence of mobile computing isn't a new story, but there's still plenty of opportunity for savvy investors to cash in on this once-in-a-lifetime trend. We already know many of the largest players well, but some of the best ways to play this shift are still under the radar. To expose our readers to these companies, the Fool recently wrote a free report detailing three unknown ways to play the mobile revolution. We made it absolutely free to our readers as well, so check out "3 Hidden Winners of the iPhone, iPad, and Android Revolution." The report is free today but won't be forever, so check out your copy today by clicking here. Enjoy, and Fool on!