[svandamme]

on wikipedia.

Given the machine's very protracted development and its ambitiousness, skepticism that the machine will work as claimed remains high. In 2003, the Securities and Exchange Commission sued Moller for civil fraud (Securities And Exchange Commission v. Moller International, Inc., and Paul S. Moller, Defendants) in connection with the sale of unregistered stock, and for making unsubstantiated claims about the performance of the Skycar. Moller settled this lawsuit by agreeing to a permanent injunction and paying $50,000. In the words of the SEC complaint, "As of late 2002, MI's approximately 40 years' of development has resulted in a prototype Skycar capable of hovering about fifteen feet above the ground."

Discovery Channel's MythBusters has reported that more than $200 million US dollars have gone into the development of the Skycar.
Presales
Moller has been taking refundable deposits on the M400 since 2003. Refund conditions include failure to meet rated performance or failure to obtain US FAA flight certification by December 31, 2005. Since 2003, Moller has slipped the date for FAA flight certification one year each year. [2][3]. As of 2006, Moller's claimed date for FAA certification stands at December 31, 2008.

seriously , anyone paying big money should be restrained...