Ripped from: The Register
A packaged version of Apache 2.0, the latest version of the Web server, is generally available.
Covalent Technologies, whose staff include several members of the Apache core team, is selling the open source Web server along with extensions to improve the reliability, manageability and security of the platform with its Enterprise Ready Server (ERS). ERS, is designed for large enterprises, coming with a Java application server and a sizeable price tag of $1,495 per CPU.