The Falcon 1 launch from Kwajalein with the Jumpstart mission and other payloads (see below) has been set back. The range has informed SpaceX its assets are needed for other launches. "Launch is no sooner than late July to early August," said SpaceX CEO Elon Musk. "We will use the time to do additional checkouts."
COMMENT: I'm not impressed: the launch has been on the schedule a long time, and indeed is already behind the original schedule for technical reasons. A week before the launch is finally set to go, the range finds it can't support the flight for another month or more? It's puzzling.