Webconverger 17.0 is a specialist distribution designed for web kiosks - now based on Debian's "testing" branch: "Webconverger 17.0 is exciting for two reasons: new installer allowing you the choice to install to a USB stick and whole base is upgraded from 'Squeeze' to 'Wheezy'. The 'install' term can be misinterpreted as a straight copy of image. Install in Webconverger parlance means you are creating a read/write store. When you follow the USB guide you are: downloading the ISO; 'dd-ing', that is plonking the image upon the USB stick, without partitioning the USB stick (this is tricky); the new installer allows you to partition (tricky bit solved) the USB stick and use it as a read/write store.
 
About Webconverger
 
Webconverger is a live, Debian-based web kiosk. It is designed for deployments in places like offices or Internet cafés where only web applications are used.