West Virginia was almost universally expected to be a big victory for Clinton, which it clearly is, but for me the big surprise is the breakdown of the votes (so far).
Obama Lost in EVERY Category
Based on CNN's Exit Polls:
Clinton won Women 71/27 (no huge surprise)
Men 59/37
Every Age Group
Every Income Group, Including Over $100,000 by 51/45
Every Educational Level
Even Those for Whom Iraq is the Top Issue 56/41
Like most everybody else I don't see how these results change the almost inevitable Nomination win for Obama, but they certainly make clear that there are big holes in his game that somebody better figure out how to fix, quickly.