Hello Rayn,
According to People magazine, there was a very private memorial service held in Los Angeles and Beverly Hills on Saturday evening. It sounds like there was a brief memorial service, followed by a dinner at the Beverly Hills Hotel. Things are hush hush on who attended although Michelle and Matilda left New York on Saturday morning with several bags of luggage. Naomi Watts was seen going into the hotel. Jake Gyllenhaal is also back in LA (he'd been in New Mexico filming the movie "Brothers") so it is likely he attended, too, but no source has confirmed that officially.
Reports have said that it will take two days to return Heath's body to Australia. I am assuming that once he gets there, there will be a funeral, but no details on that have been released.
There is a rumor (unconfirmed) that there will be a public memorial service in LA next week.
Leslie