In the end, there is no one technology to "rule them all". The hardware, software, firmware, protocols, chipsets, applications, network architectures, devices, routers, cabling, switches, standards-setting bodies, politics, and so forth, it takes to the make the internet "faster" is mind-numbing.
If the term 'converged infrastructure' (also called integrated systems or unified computing) sounds like a mix of grid, cloud, utility, on-demand and shared computing services, you're right. However, this complexity doesn't seem to bother customers, especially small and midsize enterprises. But will this trend continue?