It seems the megapixel race isn't over. Three days ago Sony announced the world's first 16.41 megapixel CMOS image sensor for mobile phones putting today's 12 megapixel units to shame.
The 1/2.8-inch back-illuminated Exmor R model IMX081PQ sensor packs an industry smallest 1.12μm unit cell size and is capable of shooting 1080p at 30fps or 720p at 60fps.
Sony claims to have solved some of the issues related to those incredibly small pixel sizes by implementing a unique formation of photo diodes to achieve a sensor with high resolution, high sensitivity, and low noise.
Expect it to begin sampling in January 2011 for about $30 or about $145 when packaged with a 10.5 x 10.5 x 7.9 mm IU081F autofocus lens module that ships in March. These prices will come down dramatically when purchased in bulk.
A second, 1/3.2-inch 8.13 megapixel IMX105PQ sensor with IU105F2 lens module (pictured on the right) will be out in April for a lot less.
source : http://www.sony.net/SonyInfo/News/Press/201010/10-137E/index.html