From the thousands of applications, which every client can find in AppStore – Apple’s service for iPhone, the ones that are most popular are those, which are fun. They can use the touch screen, in order to imitate a glass, which is being filled up with beer or to make strange and inappropriate sounds.

An application like this is iStream, which is created and executed by three Greeks. For many days it remained on top of the preference list of AppStore clients. The comments throughout specialized websites and blogs around the world about this application were more than good.

What does iStream do? Very simple: when you blow at the iPhone’s speaker, the screen steams up. After that the consumer can clean it up exactly the same way he/she can clean a steamy window. Then the surface of the screen shows in a very realistic way and it even has drops of water, which are completely following the laws of physics and of gravity.

This application is so simple that no one needs to have it and nobody would have a reason to upload it on his/her phone and especially pay one dollar for it. But on New year’s iSteam was the top news in the website Gizmodo.com and up until today it has been on Digg.com’s fist page three times.

Vasilis Rapos 22, Kostas Elevteriou 24 and Vasilis Samolis 22 are big fans of Apple and of iPhone. The three iSteam creators saw a business opportunity in Apple’s gesture to allow iPhone consumers to create their own applications and to give it to AppStore.

iPhone’s consumers were expecting this opportunity to create applications and the new platform became very successful. “During July AppStore started with 500 applications, which were put by Apple but right now there are more than 20 000,” says Kostas. “This equals to $30 million for the company only from AppStore,” adds Vasilis. Consumers have downloaded applications more than 500 million times and the prognosis is that it will reach 1 billion this year.

Kostas, the programmer from the team, needed one week to create iSteam. “It would have taken me less time is I knew iPhone’s programming language,” he says.

The success from this application tempts the young businessmen to achieve bigger things. Of course their business plan is ready and the first thing they are about to do is to open a firm in London. Vasilis, who calls himself “business freak” says: “We will continue with iSteam for some time, we will make some improvements and a new edition and together with that we will plan our next step.”