Create a lightweight mobile skin for XWiki Enterprise, or rather make the already existing colibri skin websafe for the mobile devices.
There is already a version for a mobile skin done by Ludovic Dubost. 

This project will take forward and optimize it for different situations: dashboard, editing, administration, livetables, actions (copy, delete, etc.), etc. 

Ecaterina Moraru (Valica) 

Good knowledge of XHTML, CSS, Javascript, a template/scripting language (Velocity, PHP, Groovy, JSP, Ruby, etc). General knowledge about the XWiki API, HSQL would be nice.