Microsoft eyes a meaner, 'greener' P2P for Windows 7
 

Windows Vista already includes a P2P-enabling technology known as Teredo. But for the forthcoming Windows 7, Microsoft is contemplating adding such features as metered connections, distributed hash tables, and something called 'green P2P.'
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*Source: BetaNews (http://www.driverheaven.net/Microsof...%20Windows%207)
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