There was an article about this a while back (whose link I can't find). Microsoft's Silverlight-to-iPhone streaming is basically 'Microsoft implemented in IIS

There was an article about this a while back (whose link I can't find). Microsoft's Silverlight-to-iPhone streaming is basically 'Microsoft implemented in IIS Streaming Server a streaming standard the iPhone already supports'. It doesn't require any approval from Apple. It's just streaming h.264 over HTTP.