Today we’re revealing the fifth set of speakers for our third annual GamesBeat 2011 conference. Our slate of speakers will include Rich Wong, partner with venture capital firm Accel; Chris Bergstresser, executive vice president of online game portal Miniclip; and David Marcus, founder and CEO of mobile payment company Zong.

This GamesBeat 2011 conference takes place July 12-13 at the Palace Hotel in San Francisco.

David Marcus is the founder and CEO of Zong, a mobile payment company that is heavily used by online gaming and social networking web sites. Zong lets you make payments online and bill them to your mobile phone. Zong is the mobile payment provider for Facebook Credits and also works with other sites like Sony Online and Gaia Online to manage transactions for virtual goods. His company recently said it is expanding to home video game consoles and tablets.

Rich Wong is a partner at venture capital firm Accel. Accel has invested in several gaming companies like Angry Birds developer Rovio and gaming social network Raptr. Wong also served on the board of AdMob, which was acquired in 2009 by Google. He is also on the board of Getjar Networks, one of the largest third-party app stores for Google’s mobile operating system, Android.

Chris Bergstresser is the executive vice president of online gaming portal Miniclip. He has more than 20 years of experience in the video game industry. Bergstresser joined Miniclip in 2010 and runs business development, strategic & commercial partnerships, licensing, online and mobile publishing for the company. He joined the board of directors of Edgevertise and the board of advisers for Games2win India in 2010.

Our previous announced speakers include Neil Young, founder and CEO of Ngmoco; Andrej Nabergoj, founder and chief executive of Outfit7; Jason Citron, founder and chief executive of OpenFeint; Steve Perlman, chief executive of games-on-demand firm OnLive; Bart Decrem, head of mobile games at Disney and former chief executive of Tapulous; Trip Hawkins, chief executive of Digital Chocolate; Peter Relan, chairman of YouWeb and chief executive of CrowdStar; Si Shen, chief executive of PapayaMobile; David Ko, senior vice president for mobile at Zynga; our keynote speaker, longtime game entrepreneur and founder of Atari, Nolan BushnellTim Chang, partner at Norwest Venture Partners; Daniel Terry, co-founder of mobile game maker Pocket Gems; and Bing Gordon, partner at Kleiner Perkins Caufield & Byers and former chief creative officer at Electronic Arts; Jennifer Lu, director of business development at TinyCo; Sana Choudary, CEO of game startup accelerator YetiZen; and Tim Merel, managing director of Digi-Capital.

Each year, GamesBeat follows a big trend. In 2009, we focused on how All The World’s a Game, with the explosion of games onto a global stage. Last year, GamesBeat@GDC focused on Disruption 2.0. This year, our theme is Mobile Games Level Up, and it focuses on the busy intersection of games and mobile technology. We’ll focus on everything from smartphone games to tablets and handhelds.

Console games dominated the news in the past, but the center of attention is rapidly shifting toward mobile as more and more users play games on the run. While there are hundreds of millions of gamers on Facebook, analysts believe the number could be much higher for mobile games. Our speakers are right at this intersection of gaming and mobility. GamesBeat 2011 targets an audience of CEOs, executives, entrepreneurs, investors, marketers and other key figures in the game business. Stay tuned for more speaker announcements.

We’ll be exploring the most disruptive game technologies and business models at our third annual GamesBeat 2011conference, on July 12-13 at the Palace Hotel in San Francisco. It will focus on the disruptive trends in the mobile games market. GamesBeat is co-located with our MobileBeat 2011conference this year. To register, click on this link. Sponsors can message us To pitch a startup at the Who’s Got Game contest at GamesBeat 2011, click here.