The new kid on the block of Open Source business models - the stack model - is gaining VC acceptance. The money that’s been on the sidelines is moving into the game. Both SpikeSource and SourceLabs are a less risky, easier to sell, open source solution.
There have been other stacks of software sold such as Red Hat’s server software, and smaller, loosely federated stacks that target developers for the most-part. However, the current stacks lean on proprietary software extensions built into the stacks (as a module on top of mostly open source cores) for revenue. The stack model companies mentioned in this article seem to be going after the enterprise systems by leaning more on packaging, service, support, and certification.
The merit based OS community fosters an environment in which software is only released when it is ready. The problem is that only that one small piece is ready, not the entire framework. Developers who review a lot of Open Source projects envision many the fragmented OS projects converging into a framework, however, they realize that a good bit of the cost is putting all these pieces together for a customer.
This is where the stack business model steps in. Configured, enterprise-ready, supportable stacks of open source with minimal proprietary tie-in, unlike the Linux distribution model that was popular from 2000-2004.
Stacks are also important for developers because it gives them a large base of OS projects on which they can now build on top of as a whole. This allows for further freedoms both in the OS realm and commercial realm of stacks without the hassle of putting all the pieces together.
These stacks are built on top of a loose framework referred to widely as LAMP, which stands for Linux Apache MySQL [PHP, Python]. Ironically these stacks are also available on Windows also. SpikeSource calls that stack the WAMP Stack.