lucy24 - 9:13 pm on Oct 3, 2011 (gmt 0)
Did the three people have something in common? Geographical area, browser type? I'm still getting the same thing that google rolled out, what, a few weeks ago? Or possibly months. I tend to misplace time. The version with the pale blue hover-arrow that brings up a Preview. Or, in the case of my newer pages, No Preview Available.* (As a curious aside: in Safari they listed two versions of the same page-- that is, two URLs-- reflecting a brand-new redirect. Camino only shows the new version.)
Incidentally, the SERP screen looks really nice if you have a powerful ad blocker, because the area along the right is completely empty. Didn't even realize there was supposed to be something there until I tried a different browser. I thought they were keeping it free for the Previews. Ha, ha. As if.
* Quick detour to Error Log confirms that they tried to pick up a Preview-- but only once. They didn't put in a fresh request for each new SERP. So the Google Web Preview robot has some type of robotic intelligence that ordinary robots haven't got.