I would get worked up about Intel going from 1156 to 1155. Except I couldn't care less. I never liked 1156, and to this day still don't like it. This Clarkdale stuff is something I might want in my HTPC or Subnotebook, but that's it really.
I think LGA1366 is great, yet already old. By the time it's gonna be replaced (Q3 2011), it's gonna be REALLY old. And 32nm Hexas run fine even on boards from 2008, so everything is fine in the high end world. Which means everything is fine with me