Does Web Platform Installer support automation?

I wonder if I can automate WPI actions to setup a dev box in unattended mode, either with command line options or a configuration file. It looks like WPI takes a "URL" as a command line parameter but I have no idea what format the response should be in, and what it allows in general.

EDIT: Thanks folks for the huge effort to come up with ways to automate setups. As @fra mentioned now there is a command line tool for WPI.

What does the Web Platform Installer do?

Web Platform Installer (Web PI) is a freeware, closed-source package management system that installs non-commercial development tools and their dependencies that are part of Microsoft Web Platform, including: Internet Information Services.

What is Web platform in IIS?

The Microsoft Web Platform Installer is a free tool that makes it simple to download, install and keep up-to-date with the latest components of the Microsoft Web Platform, including Internet Information Services (IIS), SQL Server Express, .NET Framework and Visual Studio.

WebPi Command Line was just released:

http://blogs.iis.net/satishl/archive/2011/01/26/webpi-command-line.aspx