Web programming and Hosting II
Following up with this post, James Bennett really does it well.
He explains the problem (the lack of a universally good standard gateway for dynamic languages and webservers), the objective (the change to long-running processes) and the solution (Languages guys and hosting working together to provide a better way for programmers like me to easily deploy stuff to the server and whatever magic is behind to be correctly handled by the hosting guys).
I know that DH guys really want it, now it’s just a matter of fact they can get along with RoR and Django guys to do some real work.

Nuno Mariz
In the apache side the mod_wsgi is very easy to install and run for multiple applications/users on a shared environment.
Even thought I think for cheap hosting the way is virtualization.