NEW YORK—Adobe's PDF document-distribution format may seem entrenched among computing consumers, but that isn't stopping Microsoft from trying to throw its weight behind a competing publishing venture.

At its Tablet PC launch here on Thursday, Microsoft provided its first public glimpse of its e-publishing technology, code-named ePeriodicals.

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Doesn't surprise me that Microsoft is trying to get their noses in another potentially important, yet not completely exploited market. The general rule for me is: "Competition is always good", now what happens when that's not the case... Adobe isn't just another company in the market, luckily.