Straight from the SpaceX Website this afternoon,
"Nominal Second stage cut off (SECO) - Falcon 1 has made history as the first privately developed liquid fueled launch vehicle to achieve earth orbit!!!!!!"
This is a fantastic achievement in the development arc of commercial space, and I'm sure only the first of many to come for SpaceX. Personally, I find it very exciting to be here at the beginning stages of our evolution into a private spacefaring race.
Who, and what, is next?