See: http://egami.blog.so-net.ne.jp/2011-11-25
(in Japanese, Excite English Translation Here)
It is a sensor shift image stabilisation technology that is almost identical to the current Pentax SR one afterall, I believe. So, after the Pentax requisition, Ricoh has promptly absorbed and adopted the useful intellectual property of Pentax and improvement to the existing product line has been realised. Again, it is really a good news, especially and hopefully if this new SR-ed GXR module is in K-mount! Why Not? :-D
Related:-
In-Body Anti-Shake Patents Fully Dissected