SwitchPipe is a proof of concept "Web application server

What Company Is Offering:
SwitchPipe is a proof of concept "Web application server." More accurately, it's a Web application process manager and request dispatcher / proxy. Backend HTTP-speaking applications (Web applications) do not run directly within SwitchPipe, but are loaded into their own processes making SwitchPipe language and framework agnostic.

How It Works:

SwitchPipe takes control of, and manages, the backend application processes, including loading and proxying to multiple instances of each application in a round-robin style configuration. As an administrator, you can define the maximum number of backend processes to run for each app, along with other settings so that you do not exceeded preferred resource limits. SwitchPipe quickly removes processes that "break" or otherwise outlive their welcome. For example, you can let SwitchPipe kill any backend processes that have not been accessed for, say, 20 seconds. This makes hosting many multiple Rails applications, for example, a quick and non-memory demanding process, ideal for shared hosting environments.

More at:http://switchpipe.org/