Akihabara News, Electronista report that Sony announced 12, 8 and 5MP sensors and camera modules featuring the new 1.4um pixels. As far as I was able to understand the original Sony Japan announcement, translated by Google, 1/2.5-inch IMX060PQ 12.25MP and 1/4-inch IMX045PQ 5.15MP sensors start sampling in March 2009, while 1/3.2-inch IMX046PQ 8.11MP samples are available in November 2008, that is now. IU060F 12.25MP camera module sampling begins in September 2009, while IU046F 8.11MP module sampling starts in February 2009. The modules have piezoelectric AF, F2.8 lens and 28mm and 32mm equivalent focal length for 12MP and 8MP models respectively.
Regarding the technology, Sony only tells about Cu wiring and column-parallel ADCs used in the sensors. 12MP sensor speed is 10fps at full resolution, while 5MP and 8MP ones have 15fps full resolution speed. All sensors have 1080p/30fps and 720p/30fps HD video modes (except 12MP one having only 27fps in 1080p mode and 5MP one having 60fps in 720p mode). The new 1.4um pixel sensitivity is said to be equal to one of 1.75um pixel.
The sensor's interface is 648MHz 2-lane MIPI and sub-LVDS. Supply voltage is a triple combination of 2.7V for analog, 1.2V for digital and 1.8V for interface (1.8V is probably needed to adopt sub-LVDS voltage levels).
Red color reproduction is one of the most difficult problems in small pixel design. Probably because of that Sony put a magnified inset with red color details in its sample picture from its new 12MP sensor (click on picture to enlarge):
Update: It looks like Sony Insider site has quite a complete translation of Sony Japan PR on 1.4um generation. It also has a translated table with sensor parameters:
Update #2: Here is the official Sony PR in English.