Microsoft subsidized development of some popular apps for Windows Phone (e.g., Angry Birds). They paid for these. They were necessary to claw away at some market share. Chen seems to think he's entitled . . . and this is one reason why BlackBerry is utterly doomed. Now I wouldn't develop a BB app even if he paid me :-) But while we're at it, maybe we do need some regulation, so we can hold app developers at gunpoint…
They did subsidize a number of major apps that come over to BlackBerry.
Subsidized, and even subsequently outsourced development to other companies, though I realize this isn't necessarily unusual. It just isn't made public.