The past 10 years have seen dramatic changes in the wireless industry: the advent of smartphones and mobile apps, strides in mobile advertising and marketing, faster networks and more. And behind these changes are billions of dollars in investment. In fact, in the past 10 years venture capitalists have spent $34 billion investing in the mobile industry, according to new data from research-centric investment bank Rutberg & Company. And, over the same time period, they have made $54 billion from VC-backed company exits. What were some of the biggest successes and failures for venture capitalists during the decade? Read on to find out. Special Report