Story: Passport failure shows the folly of Microsoft's ways
The idea of PassPort is what the Liberty Alliance is about but then modified for a Microsoft only world.
Remember that Microsoft was invited early on to join the Liberty Alliance but no, they had to come with their own modified version. In other words, as usual, not someone elses way but "someone elses way our way".
Cooperation (as in: platform independant) isn't in Microsoft dictionary just yet.
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