The coming 4G will change the landscape of mobile computing. According to Selena Routh, blogger, PhoneService.org: 4G offers the following advantages: Speed, Availability, More Apps, Better Graphics, Security, Capacity and Gaming. The good thing is that it is already available in the USA and other advanced countries. You can see why people dropped GPRS and use the HSDPA 3.5 G before. It is because of the speed. When 4G offers 10 times faster than 3G, the choice is obvious. The implication is the flourisment of many hand-held devices in replacement of the regular PCs.