We refined our initial design concepts and started homing in a design that is feasible to implement. This document was produced as part of a project in course 15.980 - Product Design and Development - a core course in the System Design Management (http://sdm.mit.edu) program at MIT. We are sharing the information about the project under the Creative Commons (Non Commercial) license. Team members (SDM 2006): Samuel Chow, Christian LaFon, Matt LaMantia, Spiros Lekkakos, David Schiller, Yoav Shapira, Eugene Xiao