AT&T hopes to rollout 4G technology by 2011

Mobile World Conference in Barcelona, AT&T announced an official timeline for the rollout of their next-generation 4G network, which will be up and running in 2011. The new LTE network will be capable of more than five times the speed of HSPA+. Speculation is that the announcement of the new network reflects a desire to provide a wider range of services, like VoIP, mobile gaming and video calls.