I tend to subscribe
andrasz' post entirely.
Lonewolf 50 also raises good points. As the amount of leaks and conflicting reports grows, it is becoming obvious that Malaysia Airlines and Malaysian authorithies are being withholding information since day 1. However, this does not necessarily suggest they are deliberately lying or are part of "cover up". Probably, they have themselves conflicting reports and are simply trying to coordinate and verify all information before going public.
That said,
if the information from the military source reported earlier today by Reuters will be confirmed, then this changes whe whole picture completely.
Too many ifs, too many unverified reports, too many questions still unanswered. To all those who ask about ACARS: until the logs will be released, if ever, we can only speculate. The information provided by the airline so far are inconclusive, at the very least.