Your fears are not unfounded.
So long as there is any form of unreliability in the connection between the dumb terminal and the cloud, no one is going to risk it. It only takes one weak link in the chain and business comes to a grinding halt. Would any business put its very ability to do business in the hands of a telecoms company that would then have carte-blanche to hike the bandwidth prices?
it is only resulting in more traffic on the digital highway and now that all the all-you-can-eat packages are gone, (which is perverse as we're all being fitted with faster optical lines) it is only going to cost more and jam up the Internet. I had a hard enough time trying to watch ITV catch-up the other night which was stuttering like crazy ... probably because of someone in my beighbourhood downloading the latest movie.
With every company and his dog wanting us to move to on-demand video and movies over IP, playing 3D games over the Internet on a remote server, basically living every aspect of our lives on the Internet ... the bandwidth that optical links will deliver will already be eaten up and there will be no black fiber left anywhere in the UK network.
The cloud as a mass market solution doesn't work; can't work; won't work. End of. And if I'm wrong, I'll buy a hat with the sole purpose of eating it.
This is merely the only way that software companies have left in order to exert any form of control over their licence income and beat the pirates, but the only option they will have to make the thing work is if they stop selling the silver discs.
The only way this would work is if there was a major change in the way that the Internet is delivered and charged for.