The problem I see is that most are already possible with current internet speeds.
The ones like media production studios (http://www.nbnco.com.au/nbn-for-business/case-studies/increa...) do offer new opportunities which aren't possible with ADSL2.
The only issue here is that they can easily afford to pay the 2K for FTTH under the Coalition policy.
60-70KB/sec upload means that producing video content is out of the question. It means that dropbox-style syncing of content I produce on my mobile device to the could is not possible. Services like crashplan are a far-away dream.
There's many, many things that are not possible even with our current DSL network, even for people who are living in the highly developed parts of this country. Never mind those who are out in rural areas and for whom DSL is even more crippled.
If you want to get an idea of this, just look at the "DSLAM maps" for a major Australian ISP: http://www.tpg.com.au/maps/
The problem is: what's after video? There doesn't seem to have been a rash of such game-changing applications of faster networks coming out of Japan or South Korea. They've had very fast internet for around a decade; where are the step-function changes in what can be done and what are they?
It's about 2 things, and neither are raw download speed.
1) It's about upload speed. That's the major upgrade that we don't see right now. As the net moves towards more and more user-generated content (youtube, dropbox file relocation, etc.) it's going to be upload speeds that are the Achilles heel of these technologies working.
2) Related to #1 and perhaps even more importantly, it's about leveling the playing field. Right now, if you design an online service you have to assume someone has DSL at 1.5Mb/sec down, as that's the minimum guaranteed DSL connection.
You can't assume people can stream HD. You can't assume people can move multiple GB of data down in a reasonable time, or even hundreds of MB up in a reasonable time. All of these assumptions play a crucial role in what online services can deliver in this country.
It would be as if some new technology came along for our road network that allowed people to drive safely at 500km/hr but there's also a cheaper alternative that allowed travelling at 200km/hr, then focusing on whether we need to be able to drive at 500km/hr or 200km/hr over our existing road network to get to work or not. That's completely missing the point. The thing that a 500km/hr road network allows you to do is completely change how and where towns are constructed.
Suddenly, traveling from Sydney to Melbourne by road is trivial, rather than a plane trip as it currently is. People can live in Newcastle (for non-AU people, a small industrial satellite town of Sydney) but work quite conveniently in Sydney, changing the game for the real estate pricing problems Sydney presently faces.
The problem is that people are extrapolating present-day experiences to this new tech and that is completely missing the point. Doing what we currently do, only faster, is about 1% of the puzzle. The overwhelming majority of the advantage comes about from completely changing the landscape on what online services can do, what they can assume, and how they will go on to affect what will undoubtedly be a huge array of facets of our day-to-day life.
When we upgraded from 56k dial-up to DSL, it wasn't about loading animated spinning wireframe skull gifs from Geocities faster. It was about being able to stream audio and (eventually) video. The landscape changed and suddenly Netflix/YouTube/etc. became possible.