About Forrester
Forrester Research, Inc. is an independent research company that provides pragmatic and forward-thinking advice to global leaders in business and technology.

Charles serves CIOs. His research covers mobility and the digital home. He has an end-to-end understanding of wireless, encompassing end user behavior, devices, networks, carrier strategy, content, and applications, as well as mobile as a marketing channel. His research on the digital home examines the enabling networks; connectivity solutions; content and applications; and the changing role for service providers, media companies, marketers, device makers, and application developers in this evolving environment. Charles' research and analysis have been widely cited in publications including BusinessWeek, the Financial Times, The New York Times, and The Wall Street Journal, as well as on ABC, CNBC, CNN, NPR, and PBS.
Prior to joining Forrester, Charles held senior technology positions at Citigroup, providing strategic technology guidance across business units in consumer and corporate finance. Among his projects were initiatives in consumer mobile banking in Japan, mobile commerce in Japan, and mobile payments in the US. His previous experience covers a wide variety of technologies and markets, including CAD for integrated circuit design, 3D graphics for film and broadcast, consumer entertainment software, interactive television, and production systems for game development.
Charles holds M.S. and B.S. degrees in mathematics from the University of California, Santa Cruz.
What are the trends in consumer usage of Mi-Fi Routers (compact wireless routers that act as mobile Wi-Fi hotspots)?
How did the four major cell phone carriers (AT&T, T-Mobile, Verizon, Sprint) perform in gross adds over the past three quarters (i.e., new activations for Q4 2010 through Q2 2011)?
Does Forrester think that the Win7 smartphones will establish a significant share of market?
What is the penetration of mobile Internet usage?
How many mobile subscribers have an iPhone in the US?