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Microsoft has already gone into plenty of detail about the touch features in Windows 7. In fact, touch was the first thing that the company shared when it came to how Windows 7 would look and feel.

But for those that really want to go deep, the company on Wednesday posted an even more detailed look at the thinking that went into building touch into Windows 7.

The company also noted that it continues to tweak the way gestures work as it gets more feedback from the beta version of Windows 7 that was released in January. For example, in its earlier incarnation, the recognition engine was missing many quickly performed gestures.
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"We tuned the gesture detection engine with sample gesture input provided by real people using touch in pre-release builds," Microsoft said in the blog posting. "These tuned gestures are what you will see in the (release candidate) build."

The company also notes which touch-capable machines already in the market support the pre-release versions of Windows 7, namely HP 's TouchSmart All-in-One PCs (IQ500 series & IQ800 series), its TouchSmart tx2 Tablet PC, and Dell's Latitude XT or XT2 Tablet PC.

The blog goes into a lot of detail on how the gestures work and how the company tests the features. Because it's sometimes easier to see something in action, I've included two videos--one that I did last fall and another that Microsoft posted on Wednesday along with its blog.