Thanks for your comments Jakob. I think Vincent's suggestion of Kinect-like senors embedded in self-service machines is a great starting point for your question; although, I agree with your point of universal solutions and wonder if/how this type of technology could be applied.
A belated congrats on this solid concept! I thought I'd share that your concept is in realization phase in Georgia.
There was a story on Atlanta public radio about a commercial real estate company offering vacant properties and six months of free rent to local startups. The company thought successful startups would treat the property owner like an investor and be willing to negotiate future rent. The company was also eager to have startup employees support the restaurants and businesses surrounding their new offices, which could raise overall property value.
I heard this, smiled, and wondered if that company was inspired by this concept. Again, congrats!
Since you compare Australian & the US systems, I'm curious to hear your insight on Australia's compulsory voting. Do you think this affects politicians willingness agree since they know nearly all of their constituents will head to the polls? It's hard to imagine compulsory voting in the US, though I assume it would bring a different climate to Capitol Hill given this increased voter engagement. What do you think?