What exactly is the value of a download?

Scott Stanchak, Director, Mobile Marketing at The New York Times, will be a moderator at one of Mobile Summit’s boardroom sessions titled “How to best measure mobile user acquisition costs and ROI.”  Taking place February 23 and 24, these intimate and closed-door sessions bring together just 20-30 senior-level execs who tackle the most urgent mobile issues in off-the-record discussion and debate. 

Just how valuable is a download?