The LHC successfully circulated protons around the accelerator ring earlier this morning. (it was 9 am European time, so the Fermilab people were having a "pajama party" in their remote control center in Battavia, Illinois).
The live webcast from the LHC control rooms still going on. Check it out!
But an experimental physicist on the project who just got back from CERN told me that the "real" collisions won't commence until October. "This is when the real fun will start!" he said.