While yesterday's All Things D conference had appearances by Gates and Ballmer unveiling Windows 7, today will feature Sony CEO Howard Stringer. He'll be there showing off new OLED displays measuring an insane 0.3mm thick. That's three tenths of a millimeter, or about the thickness of a playing card. Let's hope they're a little more generous in the surface area than their first OLED display, eh? [Silicon Alley Insider]