I disagree with that article on the single point of multi-tasking. Right now, I have a 24 mbps connection from AT&T and for single tasks, yes it is pretty much plenty for me for general use (once I have my home server up this will NOT be the case though). The thing is if I could turn on all the things I want to at once, I could easily saturate 300 to 400 mbps half the day right now.
There are tons of services, background downloads, personal applications, and so on that I just turn on and off depending on what I am doing. When working on any websites, I have to turn some other stuff off so that I can access pages, upload files, etc. but with a 1 gbps connection I would not give one single damn what-so-ever. On top of that the many things I would like to implement and host from home I could run all the time (various game servers, home web hosting, file hosting for myself, client-server applications, documentation and my own personal "cloud" services, the list is kind of massive now that I think about it) without worrying about destroying everyone else's connection at my house. I mean I do like the idea of cloud hosting for instance, but not when someone else is the host and with that kind of connection I can be the host.
Now, I will definitely give you that I am probably in the very small minority of people that could/would do this sort of thing, but that is the main advantage (right now) of 1 gbps connections. Beyond that expandability comes to mind since so many things are transitioning to run over internet connections. My TV and phone both run through the same line but are limited by necessity right now since things are run to me over such lower bandwidth connections. Considering many places want to completely get rid of POTS lines and most of your TV services are going to a vastly improved digital distribution service, high bandwidth connection are going to become much more useful in the future (not *necessary* for a while simply because it is going to take forever for this to roll out to rural areas due to the ROI being so much smaller for that kind of deployment).
If it isn't cost prohibitive to the consumer, bring on the increased bandwidth I say, can't wait until they roll it out to my area.