Team StethCloudThis time last year, a group of four students from the University of Melbourne, got together as Team StethoCloud to enter the Imagine Cup – a Microsoft competition for students to innovate with technology to solve real-world problems. StethoCloud set out to solve a big real-world problem – the fact that pneumonia kills more children under five than any other disease, and is responsible for 1.5 million deaths a year, mostly in the developing world.

They entered the Australian competition of the Imagine Cup, with their idea: a cloud-powered, mobile-hybrid stethoscope for early detection of pneumonia. By connecting a custom stethoscope to a mobile phone, the user is able to transmit diagnostic information into a cloud service, reproducing the diagnostic capability of a trained medical doctor.

Their supporting video was:

After some pretty intensive judging rounds, they won the Australian final and got to go to the world finals (sadly for them, the 2012 worldwide finals of the Imagine Cup was in Sydney). Sadly, they didn't make it to the awards at the worldwide Imagine Cup, but the story was never going to end there – they were already working with clinical researchers to see whether their idea could make it into production. And they got noticed along the way by people like TechCrunch, Bloomberg BusinessWeek, Mashable, Wired and Gizmodo.

Well it's just taken another amazing turn. Team StethoCloud have just been given an Imagine Cup Grant, of $75,000 to take their project further. In addition to the cash, they've been give grants of software, cloud computing services and access to further Microsoft resources.

This time last year, they were a group of students entering a technology competition. Now, they're continuing to solve a problem that's challenged the world for centuries.

Could it be somebody you know who could be the catalyst for that kind of change this year? It's not too late to enter the Imagine Cup 2013 – and get the chance to represent Australia at the worldwide finals in Russia next year. Student teams need four members, and have to be aged 16 or over. Entry deadline is 15th January 2013.

Find MoreFind out how to enter the 2013 Imagine Cup