http://www.sonyalpharumors.com/sr3-hot-new-sony-a1s-with-full-frame-square-sensor/
Disclaimer: I love Canon, I have a Canon, I won't sell my Canon. But still...
While it might only have an optical viewfinder like other sony bodies I have to agree with the comment on the site: "Take that Nikon D800 and new Canon 5D!". And it makes me wonder if it's still a clever idea to invest in high quality canon lenses that will last a decade or more if the big money r&d competition seems to do better than the not that revolutionary advancement of the 5d2->5d3 after a couple of years.The new A1S SLT camera with square sensor: According to two different sources Sony has a working prototype which one of my sources told me is called “A1S“. The real incredible news is that it has a Full Frame square sensor. Don’t know if it is 36mm x 36mm or a bit smaller. The source said that “will change the world of Full Frame photography“. The very good news is that all current Alpha and Minolta Full Frames lenses will work on it without any issue!
Disclaimer: I love Canon, I have a Canon, I won't sell my Canon. But still...