Microsoft's good at this...

I'd love to see Microsoft's "best practices" guide on the platform effect - they're good at it (generally). Like the developer entanglement Adobe's attempting with their eco-system, hard to argue that 4 gigs of Silverlight storage and streaming is bad for developers... just check out the community response (from a self proclaimed Adobe "Flex Machine", no less).

Though, these days, this seems more like a Google tactic than a Microsoft one... what does that tell you?