PUBLIC MARKS with tags php & "gestion de projet"

Open Source Project and Task Management Software dotProject is built using free open-source applications and is produced and maintained by a small, but dedicated group of volunteers. dotProject is programmed in PHP, and utilises MySQL for a backend database (although other databases such as Postgres could also be used). Our recommended server platform includes Apache 1.3.27, PHP 4.2 , and MySQL. In the spirit of free, peer-reviewed, open source application development, we would also encourage you to use an operating system such as Linux, FreeBSD, or OpenBSD. However, additional operating systems such as Windows, Mac, and other flavours of *nix are also supported.

activeCollab est une alternative logiciel libre (très ressemblante) à Basecamp (de 37signals), c'est à dire un outil de gestion de projet simple, avec gestion de « milestones » et tâches associées, de documents, de messages... vont-ils se faire taper dessus par 37signals???