A Croatian start-up company called Shout ‘Em has created quite the killer app for Android - the first mobile phone-based social network platform. The Shout ‘Em platform allows quick, low-cost start-up of small social networks for companies, friends and others who do want the power of running on mobiles without the risk associated with such a venture. The goal of Shout ‘Em is to “…provide tools and services so that [a mobile social network] service can be started with minimized risks and investments. It also helps [the] customer to stay focused on branding, promoting and building up a community and not to worry about technical details, scalability and reliability.”

Shout ‘Ems claims to have iPhone, Windows Mobile and Symbian clients also in the works. Guess that leaves out LiMo, eh?

It all sounds very businessy, but they also claim that it’s built for everyone right down to the end-user. They’ve put some money where their mouth is by already creating a user demo for the Android emulator (available in the Android SDK). Jump on over to Shout ‘Em’s download page for an awesome demo video.