Str82u - 12:37 am on Apr 7, 2013 (gmt 0)
Logged in SERPs have previews on left column ads and organic results but no previews on right column ads - there is a share link beside organic titles.
Logged out SERPs are the same as above but without the "share" link.
Logged in or out, the preview covers up everything on the right side. I'd love to see the G results use the same "cache/similar" link as Bing though.