Main things from the press conference (March 15 - 16:30 ADST):
ACARS turned off before transponder turned off. "Turned off" was the exact words used.
"Satellite" data has been used to confirm that the primary radar returns of what they *thought* was MH370 was indeed MH370, and track went as previously reported - over the Malacca(?) Straight.
No mention of altitude changes.
"Satellite" data (after other comms lost) *cannot* precisely locate the aircraft, but its was in one of two "corridors".
Last comms to satellite was 08:11(?? - many hours after initial course change).
Investigations now re-focusing on crew and PAX (that order). Still looking into everything and anything.
SAR canceled in South China sea. SAR being re-tasked to likely areas.
There was a lot of "international co-operation" talk etc etc. NTSB, FAA + man + goat have access to the data and are all trying to contribute.
One thing about the speech - it was very exact and precise. I watched the ABC24(AU) live stream - they showed the english speech (not sure if there was a Malay version). That speech had been vetted by very technical people. No wiggle room for interpretation.