Early this year both PCCW and CSL launched their HSPA+ network. As a result improving the speed and capacity of their respective networks. Offering a theoretical downlink speed of 21Mbps and uplink speed of 7Mbps.
On Wednesday, November 4th Smartone-Vodafone (SMV) launched their HSPA+ upgrade to their 3G network.
The difference between SMV’s announcements and the others, is that SMV also released a document to clarify the theoretical speed of HSPA+. Where as other mobile carriers in Hong Kong and elsewhere in the world, only focused on marketing the HSPA+ networks’ capability of 21Mbps speed, leaving the actual ability to achieve 21Mbps as small prints in their promotional materials. Such practices of these other mobile carriers are very misleading for layman consumers. I will attempt to explain further, to help clarify this theoretical speed of HSPA+ for layman consumers.
Early this year both PCCW and CSL launched their 
The reason is because, unlike the iPhone 3G, the iPhone 3GS is capable of supporting 7.2 Mbps downlink and 5 Mbps uplink speeds. At the moment as far as I know the 3 HK HSDPA network is capable of supporting 3.6 Mbps downlink speed at most locations and 7.2 Mbps at certain locations. Where as Smartone-Vodafone’s HSDPA network is already capable of supporting 14 Mbps downlink at every location.