The iPhone 5 -- expected to be announced on Wednesday -- will support LTE networks in Europe and Asia as well as the US, according to sources for the Wall Street Journal. The people caution that it's unlikely that the device will support LTE in all countries, but a large reach could be important to the marketing of the device. Initially, Apple heavily promoted the third-generation iPad's LTE support; since the tablet is only compatible with US and Canadian LTE bands however, complaints and government pressure forced the company to change its advertising outside North America.