The Digital Picture resolution tests were posted yesterday. Obviously results are good, but not quite as good as the EF 70-200 f/2.8L IS II.
Also according to the tests, the results of the lens deteriorate significantly at 70mm. They appear to be worse than the old EF 24-70 f/2.8L at that focal length.
http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=787&Camera=453&Sample=0&FLI=4&API=0&LensComp=687&CameraComp=453&SampleComp=0&FLIComp=0&APIComp=0
http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=787&Camera=453&Sample=0&FLI=4&API=0&LensComp=101&CameraComp=453&SampleComp=0&FLIComp=4&APIComp=0
Also according to the tests, the results of the lens deteriorate significantly at 70mm. They appear to be worse than the old EF 24-70 f/2.8L at that focal length.
http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=787&Camera=453&Sample=0&FLI=4&API=0&LensComp=687&CameraComp=453&SampleComp=0&FLIComp=0&APIComp=0
http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=787&Camera=453&Sample=0&FLI=4&API=0&LensComp=101&CameraComp=453&SampleComp=0&FLIComp=4&APIComp=0