Development infrastructure for ultra effective development.
Online services development companies meets common problems when they starts team gathering. Yet more currently available infrastructure is lacking homogeneous environment software tools, libraries usage. Yet more next get development techniques (SOLID, fluent) are not applicable because of all of this.
It possible to create such environment with small team, open source it to create community and then gain money by creating support for companies like to create robust online services fast using the people from open source community (due zero learning curve).
It is rather important to state that environment is not create single purpose dedicated rapid development environment like Ruby On Rails (e.g. best for blogs), but universal starting point to could be easily extended to html based services, big data gathering and presentation services and everything else.