Telstra will upgrade its NextG network to deliver downstream speeds of up to 21Mbps by the end of this year and 42Mbps in 2009. The announcement was made by Telstra CEO Sol Trujillo at the Mobile World Congress in Barcelona. Trujillo said ‘We have an evolution roadmap with Ericsson which will deliver customers speeds of 21Mbps in 2008 across our national NextG network – a world first – and 42Mbps in 2009 using HSPA+ technology.’ Telstra’s network already supports HSDPA with theoretical downstream speeds of 14.4Mbps, but there are no devices presently available to fully exploit this. Trujillo added that 38% of its wireless customers were connected to its 3G network the end of January 2008, up eleven percentage points in four months; among post-paid consumers the proportion on 3G is 60%. Trujillo said an ARPU differential of 3G subscribers over 2G subscribers has been maintained at more than AUD20 per month since the network launch. Trujillo said the company’s revenue from data services had surpassed revenue from text messaging in the first quarter of 2008.