Luke Wroblewski "is an internationally recognized digital product leader who has designed or contributed to software used by more than 700 million people worldwide" LukeW | About Luke Wroblewski

His site is a treasure trove of information.

Check out the slide presentation of MOBILE FIRST!
LukeW Ideation + Design | Presentations on Digital Product Strategy & Design

You can hear his audio on mp3 and see videos from May 13, 2011 at Mobilism in Amsterdam, Holland; April 12, 1011 at Breaking Development in Dallas, TX; and May 27, 2010 at LinkedIn in Mountain View, CA.
LukeW | Mobile First

LukeW Ideation + Design | Digital Product Strategy & Design is a site worth viewing