"There is one high-profile, highly successful software entrepreneur right now who is burning through something like $80 million in venture funding in his latest

"There is one high-profile, highly successful software entrepreneur right now who is burning through something like $80 million in venture funding in his latest startup and has practically nothing to show for it except for some great press clippings and a couple of beta customers -- because there is virtually no market for what he is building." I wonder who that is?