As I write, my Gridcoin client shows 1420430 blocks. Gridcoin forked around 1235 GMT.
Remember, make sure your wallet is v. 4.0.0.0 so you won't be on the wrong fork.
Once again, it's time to celebrate with my recurring contest! Have a drink on me and post the pic in the comments. You, too, will have the chance to win an upvote worth $0.001! Who can resist? Come to think of it, lots of people have. :-(