Jeff Bezos with a Kindle Fire

The Kindle Fire is just five months old. But Amazon.com’s touchscreen device already accounts for 54 percent of the Android tablet market, according to a report out today from comScore.

That’s an amazing achievement, outdistancing the next closest rival, the Samsung Galaxy, by nearly 40 percentage points.

“Within the Android tablet market, Kindle Fire has almost doubled its share in the past two months from 29.4 percent share in December 2011 to 54.4 percent share in February 2012, already establishing itself as the leading Android tablet by a wide margin,” the report said.

Amazon.com has remained tight-lipped about sales of the Kindle Fire, declining to disclose specific sales numbers in its quarterly earnings report Thursday. Amazon did say, however, that the Kindle Fire remains the top selling item on its website.

Shares of Amazon.com are up more than 16 percent in trading this morning,

In addition to the the $199 price point, Amazon.com does have an added advantage of being able to promote the device on the home page of its Web site.

Here’s a look at the Android Tablet market from comScore’s latest report.

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