Hi,

It's not open source. The clients is written in ShiVa3D, a multiplatform game engine, which has quite an obscure language and toolset.

Serverside is all PHP, but that's fairly simple, mainly just a daemon harvesting trades from exchanges and VWAPing into 1 minute resolution dbase.

Users will pay a modest subscription fee to use premium features.

There will also be a free version.

I haven't worked out details like pricing and free/premium features yet.