Thoughtful blog post about Sony sensors
It's great Sony is making so many sensors, but that can change easily and quickly.
Also, I remember reading how Vizio is killing Sony here in the US despite not making their own falt panels like Sony does. My bet is Sony's are better, but most people now buy Vizio which is why Sony is losing billions.
Finally, the most talked about sensor I know of is the Nokia 808 Pureview. Not sure if Sony makes it or not, but that tech will migrate up to the larger cameras.