This week sees the 4G World event taking place in Chicago, and we can expect some of the same divergence of themes that have been seen at other big wireless occasions this year ‘ anticipation of LTE coupled with a strong focus on technologies that can be deployed now (HSPA+ or WiMAX). Most operators will be looking to mix and match different technologies to achieve the ‘4G effect’ ‘ true broadband over wireless, huge ranges of web apps and content, flat rate pricing and multi-device access. Australia, though hardly a typical market, may provide the template for how 4G services are achieved ‘ with incumbent Telstra combining aggressive upgrades of its existing network with a cautious, hotzone approach to LTE,…