Note that XBO doesnt support it either. Lots of people seem confused by the move, but its simple they want to sell you everything.
https://twitter.com/JustinMcElroy/status/395611608363192320
https://twitter.com/JustinMcElroy/status/395612304609255424
So I guess switching sides won't even make a difference. We're just getting hosed next gen on media streaming.
Update:
He clarified he meant Windows Media Extender coverage, not DLNA, still nothing on that.
https://twitter.com/JustinMcElroy/status/395612946069331969