According to some leaked sales data, the total number of Amazon Kindle Fire tablets sold since being launched 5 days ago is hovering just over 250,000 units. Sales may have slowed down a bit since it was last estimated to have reached almost 100,000 units on its very first day, but it’s nonetheless impressive, considering how other tablet rivals have fared. The Kindle Fire may not have turned out to be the ulimate iPad-killer given the great disparity in specs and price point, but analysts still consider it to be a lot more competitive than expected. In comparison, Apple’s iPad 2 sold 2.5 million units in its first month, which is about 80,000 units a day. Amazon’s Kindle Fire is looking at about 50,000 units a day right now and that’s not too shabby, especially when you consider that the Motorola XOOM is rumored to have sold only 100,000 units after a month and a half, while the BlackBerry PlayBook, which the Kindle Fire is modeled after, only sold 500,000 units total in its first q