anyone heard much about this ??

Sony FDR-AX1 Digital 4K Video Camera Recorder FDR-AX1 B&H Photo

Yup.

http://www.dvinfo.net/forum/digital-video-industry-news/518702-new-sony-fdr-ax1-4k-handycam.html

And check out its bigger brother:

http://www.dvinfo.net/forum/digital-video-industry-news/518710-sony-launches-pxw-z100-4k-handheld-xdcam.html

Closing this thread so that we can continue on in the discussions linked above... see you there!