In our inevitable Utopian future (assuming we make it past this 2012 noise), we'll all use one frequency for our high-speed wireless broadband across the globe. Actually, we'll probably just beam information directly between our brains and brain-like supercomputers at speeds so fast they can't be measured, and we won't need smartphones at all because they'll be installed in our bodies at birth, complete with eyeballs capable of 1080p video capture. Until then, though, we've got companies like Nokia showing some hustle to put pentaband 3G radios on the market, and the trend continues with the upcoming
