I don't think this bug is specific to WP 3.5 or JP 2.1.1 as I have seen it with older versions of both, but the Exif picture details from carousel photo gallery can not be seen in Chrome or Firefox browser; however they are visible in Internet Explorer browser.
Exif data that is visible in IE:
Aperture - f/10
Camera - Canon EOS REBEL T2i
Focal Length - 41mm
Shutter Speed - 1/250s
I think this has more to do with the browsers ability to scroll down in carousel mode than Jetpack itself.