It is not a commercial product (yet), and might be just another proof of capability, but Canon has just announced a very large CMOS sensor, indicating uses like video astrophotography and nocturnal animal videography:
http://www.imaging-resource.com/NEWS/1283221661.htmlNo pixel size is mentioned, but it seems to have huge photosites for extreme low light work, which of course requires a lens of very large aperture diameter projecting a very large image circle. LF lenses do not have the speed to fully exploit it, so the word that comes to mind is "telescopes", both astronomical and terrestrial.
Do this and the recent 120MP 30x20mm sensor hint that Canon contemplating a move beyond only using its sensors in-house to making and selling some for special purpose customers? If so, the main existing makers of big sensors, Dalsa and Kodak, might be very worried.
P. S. Sorry, I overlooked an existing related thread:
http://www.luminous-landscape.com/forum/index.php?topic=45977.0