A common issue building projects is to have several actions done on the same
project.

Imagine you have a project A and you want to add a Subversion hook so you can
compile and run tests every time you make a commit. Also you want to be able to
generate a web site every night.

This scenario could be interpreted as project A build with two build triggers, a
default one to just compile and test and another one to have project's site
generated, which is launched, i.e., everyday at 2a.m.

Nowadays if you you want this feature done with Hudson it´s necessary to define
two separated jobs, each one with its own copy of the project.

If you have many different actions on the same project you have so many jobs in
Hudson each one with its on workspace copy.

Why not share this workspace?