According to ZDNet’s article "Microsoft gives RSS a big bear hug" RSS 2.0 will be pervasive in Microsoft Vista and across all Microsoft applications, so:

Businesses will be quickly able to use RSS to link their cross-organizational activities — first for informational purposes, but quickly elevating, I forecast, to process-level and potentially workflow efficiencies. There will be RSS feeds in tools, in business apps, within the platform, and as an adjunct to the Windows Communications Foundation. Expect its use across media types. RSS will also pick up where OLE left off long ago when it comes to parlaying information in automated and sequential distribution among and between XML-rich Office applications.

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