Ideas

[Luiner]

My suggestion to make this service growing fast is to open it for
indie developers, which doesn't mean only free account but also by
providing simple in use tool for graphical programming communication
(,and if possible some profiling tools).
Visual programming could look like very popular shader programming
environments (eg in UDK, and many other popular engines).
Of course I'm against locking access to current possibilities of LUA
scripting, it should be alternative for advanced developpers, and for
those who find at some point visual environment too limiting.