Research firm Strategy Analytics tracks the design and engineering trends in the handset market, and, thanks to a teaming between Strategy Analytics and FierceWireless, we'll bring you some key figures from the firm's reports. In March, 24 vendors introduced 51 new cellular handsets and four new USB dongles. According to the trends, the average screen size of handsets released in March was 2.64 inches, and fully 44 percent of the phones had touchscreens. Special feature